Cannot lock clipboard can generate stack overflow redrawing screen/showing alert about that we cannot lock clipboard

[sentry-io]

Sentry Issue: ASEPRITE-1C9

EXCEPTION_STACK_OVERFLOW / 0x7ff760348fb4: Fatal Error: EXCEPTION_STACK_OVERFLOW / 0x7ff760348fb4
  ?, in SkScan::FillRect
  ?, in SkDraw::drawRect
  ?, in SkBitmapDevice::drawRect
  ?, in SkCanvas::onDrawRect
  ?, in SkCanvas::drawRect
...
(252 additional frame(s) were not displayed)

[dacap]

Thread 11900 Crashed:
0   Aseprite.EXE                    0x7ff760348fb4      SkScan::FillRect
1   Aseprite.EXE                    0x7ff76017560a      SkDraw::drawRect
2   Aseprite.EXE                    0x7ff7601265a1      SkBitmapDevice::drawRect
3   Aseprite.EXE                    0x7ff7600298ce      SkCanvas::onDrawRect
4   Aseprite.EXE                    0x7ff76002801b      SkCanvas::drawRect
5   Aseprite.EXE                    0x7ff760af6cba      os::SkiaSurface::drawRect (skia_surface.cpp:400)
6   Aseprite.EXE                    0x7ff760ad2723      [inlined] os::Surface::drawRect (surface.h:104)
7   Aseprite.EXE                    0x7ff760ad2723      ui::Graphics::fillRect (graphics.cpp:229)
8   Aseprite.EXE                    0x7ff7608edd20      app::`anonymous namespace'::draw_checkered_grid (gfx.cpp:60)
9   Aseprite.EXE                    0x7ff7608edebd      app::draw_checkered_grid (gfx.cpp:101)
10  Aseprite.EXE                    0x7ff7608edff3      app::draw_color (gfx.cpp:133)
11  Aseprite.EXE                    0x7ff7606e377c      app::PaletteViewAdapter::drawEntry (palette_view.cpp:184)
12  Aseprite.EXE                    0x7ff7606e512c      app::PaletteView::onPaint (palette_view.cpp:858)
13  Aseprite.EXE                    0x7ff760aaa911      ui::Widget::paintEvent (widget.cpp:1231)
14  Aseprite.EXE                    0x7ff760aaa09b      ui::Widget::onProcessMessage (widget.cpp:1572)
15  Aseprite.EXE                    0x7ff760ab9509      ui::Manager::sendMessageToWidget (manager.cpp:2011)
16  Aseprite.EXE                    0x7ff760ab8c85      ui::Manager::pumpQueue (manager.cpp:1897)
17  Aseprite.EXE                    0x7ff760ab5b34      ui::Manager::dispatchMessages (manager.cpp:881)
18  Aseprite.EXE                    0x7ff760ab526d      ui::Manager::_runModalWindow (manager.cpp:1625)
19  Aseprite.EXE                    0x7ff760ab0a63      ui::Window::openWindowInForeground (window.cpp:405)
20  Aseprite.EXE                    0x7ff760acda0a      ui::Alert::show (alert.cpp:184)
21  Aseprite.EXE                    0x7ff760acdaff      ui::Alert::show (alert.cpp:173)
22  Aseprite.EXE                    0x7ff760a2183f      clip::lock::impl::impl (clip_win.cpp:221)
23  Aseprite.EXE                    0x7ff760a20d33      clip::lock::lock (clip.cpp:30)
24  Aseprite.EXE                    0x7ff760a21294      clip::has (clip.cpp:76)
25  Aseprite.EXE                    0x7ff7606bbe99      app::Clipboard::format (clipboard.cpp:302)
26  Aseprite.EXE                    0x7ff7606e5797      app::PaletteView::onPaint (palette_view.cpp:961)
27  Aseprite.EXE                    0x7ff760aaa911      ui::Widget::paintEvent (widget.cpp:1231)
28  Aseprite.EXE                    0x7ff760aaa09b      ui::Widget::onProcessMessage (widget.cpp:1572)
29  Aseprite.EXE                    0x7ff760ab9509      ui::Manager::sendMessageToWidget (manager.cpp:2011)
30  Aseprite.EXE                    0x7ff760ab8c85      ui::Manager::pumpQueue (manager.cpp:1897)
31  Aseprite.EXE                    0x7ff760ab5b34      ui::Manager::dispatchMessages (manager.cpp:881)
32  Aseprite.EXE                    0x7ff760ab526d      ui::Manager::_runModalWindow (manager.cpp:1625)
33  Aseprite.EXE                    0x7ff760ab0a63      ui::Window::openWindowInForeground (window.cpp:405)
34  Aseprite.EXE                    0x7ff760acda0a      ui::Alert::show (alert.cpp:184)
35  Aseprite.EXE                    0x7ff760acdaff      ui::Alert::show (alert.cpp:173)
36  Aseprite.EXE                    0x7ff760a2183f      clip::lock::impl::impl (clip_win.cpp:221)
37  Aseprite.EXE                    0x7ff760a20d33      clip::lock::lock (clip.cpp:30)
38  Aseprite.EXE                    0x7ff760a21294      clip::has (clip.cpp:76)
39  Aseprite.EXE                    0x7ff7606bbe99      app::Clipboard::format (clipboard.cpp:302)
40  Aseprite.EXE                    0x7ff7606e5797      app::PaletteView::onPaint (palette_view.cpp:961)
41  Aseprite.EXE                    0x7ff760aaa911      ui::Widget::paintEvent (widget.cpp:1231)
42  Aseprite.EXE                    0x7ff760aaa09b      ui::Widget::onProcessMessage (widget.cpp:1572)
43  Aseprite.EXE                    0x7ff760ab9509      ui::Manager::sendMessageToWidget (manager.cpp:2011)
44  Aseprite.EXE                    0x7ff760ab8c85      ui::Manager::pumpQueue (manager.cpp:1897)
45  Aseprite.EXE                    0x7ff760ab5b34      ui::Manager::dispatchMessages (manager.cpp:881)
46  Aseprite.EXE                    0x7ff760ab526d      ui::Manager::_runModalWindow (manager.cpp:1625)
47  Aseprite.EXE                    0x7ff760ab0a63      ui::Window::openWindowInForeground (window.cpp:405)
48  Aseprite.EXE                    0x7ff760acda0a      ui::Alert::show (alert.cpp:184)
49  Aseprite.EXE                    0x7ff760acdaff      ui::Alert::show (alert.cpp:173)
50  Aseprite.EXE                    0x7ff760a2183f      clip::lock::impl::impl (clip_win.cpp:221)
51  Aseprite.EXE                    0x7ff760a20d33      clip::lock::lock (clip.cpp:30)
52  Aseprite.EXE                    0x7ff760a21294      clip::has (clip.cpp:76)
53  Aseprite.EXE                    0x7ff7606bbe99      app::Clipboard::format (clipboard.cpp:302)
54  Aseprite.EXE                    0x7ff7606e5797      app::PaletteView::onPaint (palette_view.cpp:961)
55  Aseprite.EXE                    0x7ff760aaa911      ui::Widget::paintEvent (widget.cpp:1231)
56  Aseprite.EXE                    0x7ff760aaa09b      ui::Widget::onProcessMessage (widget.cpp:1572)
57  Aseprite.EXE                    0x7ff760ab9509      ui::Manager::sendMessageToWidget (manager.cpp:2011)
58  Aseprite.EXE                    0x7ff760ab8c85      ui::Manager::pumpQueue (manager.cpp:1897)
59  Aseprite.EXE                    0x7ff760ab5b34      ui::Manager::dispatchMessages (manager.cpp:881)
60  Aseprite.EXE                    0x7ff760ab526d      ui::Manager::_runModalWindow (manager.cpp:1625)
61  Aseprite.EXE                    0x7ff760ab0a63      ui::Window::openWindowInForeground (window.cpp:405)
62  Aseprite.EXE                    0x7ff760acda0a      ui::Alert::show (alert.cpp:184)
63  Aseprite.EXE                    0x7ff760acdaff      ui::Alert::show (alert.cpp:173)
64  Aseprite.EXE                    0x7ff760a2183f      clip::lock::impl::impl (clip_win.cpp:221)
65  Aseprite.EXE                    0x7ff760a20d33      clip::lock::lock (clip.cpp:30)
66  Aseprite.EXE                    0x7ff760a21294      clip::has (clip.cpp:76)
67  Aseprite.EXE                    0x7ff7606bbe99      app::Clipboard::format (clipboard.cpp:302)
68  Aseprite.EXE                    0x7ff7606e5797      app::PaletteView::onPaint (palette_view.cpp:961)
69  Aseprite.EXE                    0x7ff760aaa911      ui::Widget::paintEvent (widget.cpp:1231)
70  Aseprite.EXE                    0x7ff760aaa09b      ui::Widget::onProcessMessage (widget.cpp:1572)
71  Aseprite.EXE                    0x7ff760ab9509      ui::Manager::sendMessageToWidget (manager.cpp:2011)
72  Aseprite.EXE                    0x7ff760ab8c85      ui::Manager::pumpQueue (manager.cpp:1897)
73  Aseprite.EXE                    0x7ff760ab5b34      ui::Manager::dispatchMessages (manager.cpp:881)
74  Aseprite.EXE                    0x7ff760ab526d      ui::Manager::_runModalWindow (manager.cpp:1625)
75  Aseprite.EXE                    0x7ff760ab0a63      ui::Window::openWindowInForeground (window.cpp:405)
76  Aseprite.EXE                    0x7ff760acda0a      ui::Alert::show (alert.cpp:184)
77  Aseprite.EXE                    0x7ff760acdaff      ui::Alert::show (alert.cpp:173)
78  Aseprite.EXE                    0x7ff760a2183f      clip::lock::impl::impl (clip_win.cpp:221)
79  Aseprite.EXE                    0x7ff760a20d33      clip::lock::lock (clip.cpp:30)
80  Aseprite.EXE                    0x7ff760a21294      clip::has (clip.cpp:76)
81  Aseprite.EXE                    0x7ff7606bbe99      app::Clipboard::format (clipboard.cpp:302)
82  Aseprite.EXE                    0x7ff7606e5797      app::PaletteView::onPaint (palette_view.cpp:961)
83  Aseprite.EXE                    0x7ff760aaa911      ui::Widget::paintEvent (widget.cpp:1231)
84  Aseprite.EXE                    0x7ff760aaa09b      ui::Widget::onProcessMessage (widget.cpp:1572)
85  Aseprite.EXE                    0x7ff760ab9509      ui::Manager::sendMessageToWidget (manager.cpp:2011)
86  Aseprite.EXE                    0x7ff760ab8c85      ui::Manager::pumpQueue (manager.cpp:1897)
87  Aseprite.EXE                    0x7ff760ab5b34      ui::Manager::dispatchMessages (manager.cpp:881)
88  Aseprite.EXE                    0x7ff760ab526d      ui::Manager::_runModalWindow (manager.cpp:1625)
89  Aseprite.EXE                    0x7ff760ab0a63      ui::Window::openWindowInForeground (window.cpp:405)
90  Aseprite.EXE                    0x7ff760acda0a      ui::Alert::show (alert.cpp:184)
91  Aseprite.EXE                    0x7ff760acdaff      ui::Alert::show (alert.cpp:173)
92  Aseprite.EXE                    0x7ff760a2183f      clip::lock::impl::impl (clip_win.cpp:221)
93  Aseprite.EXE                    0x7ff760a20d33      clip::lock::lock (clip.cpp:30)
94  Aseprite.EXE                    0x7ff760a21294      clip::has (clip.cpp:76)
95  Aseprite.EXE                    0x7ff7606bbe99      app::Clipboard::format (clipboard.cpp:302)
96  Aseprite.EXE                    0x7ff7606e5797      app::PaletteView::onPaint (palette_view.cpp:961)
97  Aseprite.EXE                    0x7ff760aaa911      ui::Widget::paintEvent (widget.cpp:1231)
98  Aseprite.EXE                    0x7ff760aaa09b      ui::Widget::onProcessMessage (widget.cpp:1572)
99  Aseprite.EXE                    0x7ff760ab9509      ui::Manager::sendMessageToWidget (manager.cpp:2011)
100 Aseprite.EXE                    0x7ff760ab8c85      ui::Manager::pumpQueue (manager.cpp:1897)
101 Aseprite.EXE                    0x7ff760ab5b34      ui::Manager::dispatchMessages (manager.cpp:881)
102 Aseprite.EXE                    0x7ff760ab526d      ui::Manager::_runModalWindow (manager.cpp:1625)
103 Aseprite.EXE                    0x7ff760ab0a63      ui::Window::openWindowInForeground (window.cpp:405)
104 Aseprite.EXE                    0x7ff760acda0a      ui::Alert::show (alert.cpp:184)
105 Aseprite.EXE                    0x7ff760acdaff      ui::Alert::show (alert.cpp:173)
106 Aseprite.EXE                    0x7ff760a2183f      clip::lock::impl::impl (clip_win.cpp:221)
107 Aseprite.EXE                    0x7ff760a20d33      clip::lock::lock (clip.cpp:30)
108 Aseprite.EXE                    0x7ff760a21294      clip::has (clip.cpp:76)
109 Aseprite.EXE                    0x7ff7606bbe99      app::Clipboard::format (clipboard.cpp:302)
110 Aseprite.EXE                    0x7ff7606e5797      app::PaletteView::onPaint (palette_view.cpp:961)
111 Aseprite.EXE                    0x7ff760aaa911      ui::Widget::paintEvent (widget.cpp:1231)
112 Aseprite.EXE                    0x7ff760aaa09b      ui::Widget::onProcessMessage (widget.cpp:1572)
113 Aseprite.EXE                    0x7ff760ab9509      ui::Manager::sendMessageToWidget (manager.cpp:2011)
114 Aseprite.EXE                    0x7ff760ab8c85      ui::Manager::pumpQueue (manager.cpp:1897)
115 Aseprite.EXE                    0x7ff760ab5b34      ui::Manager::dispatchMessages (manager.cpp:881)
116 Aseprite.EXE                    0x7ff760ab526d      ui::Manager::_runModalWindow (manager.cpp:1625)
117 Aseprite.EXE                    0x7ff760ab0a63      ui::Window::openWindowInForeground (window.cpp:405)
118 Aseprite.EXE                    0x7ff760acda0a      ui::Alert::show (alert.cpp:184)
119 Aseprite.EXE                    0x7ff760acdaff      ui::Alert::show (alert.cpp:173)
120 Aseprite.EXE                    0x7ff760a2183f      clip::lock::impl::impl (clip_win.cpp:221)
121 Aseprite.EXE                    0x7ff760a20d33      clip::lock::lock (clip.cpp:30)
122 Aseprite.EXE                    0x7ff760a21294      clip::has (clip.cpp:76)
123 Aseprite.EXE                    0x7ff7606bbe99      app::Clipboard::format (clipboard.cpp:302)
124 Aseprite.EXE                    0x7ff7606e5797      app::PaletteView::onPaint (palette_view.cpp:961)
125 Aseprite.EXE                    0x7ff760aaa911      ui::Widget::paintEvent (widget.cpp:1231)
126 Aseprite.EXE                    0x7ff760aaa09b      ui::Widget::onProcessMessage (widget.cpp:1572)
127 Aseprite.EXE                    0x7ff760ab9509      ui::Manager::sendMessageToWidget (manager.cpp:2011)
128 Aseprite.EXE                    0x7ff760ab8c85      ui::Manager::pumpQueue (manager.cpp:1897)
129 Aseprite.EXE                    0x7ff760ab5b34      ui::Manager::dispatchMessages (manager.cpp:881)
130 Aseprite.EXE                    0x7ff760ab526d      ui::Manager::_runModalWindow (manager.cpp:1625)
131 Aseprite.EXE                    0x7ff760ab0a63      ui::Window::openWindowInForeground (window.cpp:405)
132 Aseprite.EXE                    0x7ff760acda0a      ui::Alert::show (alert.cpp:184)
133 Aseprite.EXE                    0x7ff760acdaff      ui::Alert::show (alert.cpp:173)
134 Aseprite.EXE                    0x7ff760a2183f      clip::lock::impl::impl (clip_win.cpp:221)
135 Aseprite.EXE                    0x7ff760a20d33      clip::lock::lock (clip.cpp:30)
136 Aseprite.EXE                    0x7ff760a21294      clip::has (clip.cpp:76)
137 Aseprite.EXE                    0x7ff7606bbe99      app::Clipboard::format (clipboard.cpp:302)
138 Aseprite.EXE                    0x7ff7606e5797      app::PaletteView::onPaint (palette_view.cpp:961)
139 Aseprite.EXE                    0x7ff760aaa911      ui::Widget::paintEvent (widget.cpp:1231)
140 Aseprite.EXE                    0x7ff760aaa09b      ui::Widget::onProcessMessage (widget.cpp:1572)
141 Aseprite.EXE                    0x7ff760ab9509      ui::Manager::sendMessageToWidget (manager.cpp:2011)
142 Aseprite.EXE                    0x7ff760ab8c85      ui::Manager::pumpQueue (manager.cpp:1897)
143 Aseprite.EXE                    0x7ff760ab5b34      ui::Manager::dispatchMessages (manager.cpp:881)
144 Aseprite.EXE                    0x7ff760ab526d      ui::Manager::_runModalWindow (manager.cpp:1625)
145 Aseprite.EXE                    0x7ff760ab0a63      ui::Window::openWindowInForeground (window.cpp:405)
146 Aseprite.EXE                    0x7ff760acda0a      ui::Alert::show (alert.cpp:184)
147 Aseprite.EXE                    0x7ff760acdaff      ui::Alert::show (alert.cpp:173)
148 Aseprite.EXE                    0x7ff760a2183f      clip::lock::impl::impl (clip_win.cpp:221)
149 Aseprite.EXE                    0x7ff760a20d33      clip::lock::lock (clip.cpp:30)
150 Aseprite.EXE                    0x7ff760a21294      clip::has (clip.cpp:76)
151 Aseprite.EXE                    0x7ff7606bbe99      app::Clipboard::format (clipboard.cpp:302)
152 Aseprite.EXE                    0x7ff7606e5797      app::PaletteView::onPaint (palette_view.cpp:961)
153 Aseprite.EXE                    0x7ff760aaa911      ui::Widget::paintEvent (widget.cpp:1231)
154 Aseprite.EXE                    0x7ff760aaa09b      ui::Widget::onProcessMessage (widget.cpp:1572)
155 Aseprite.EXE                    0x7ff760ab9509      ui::Manager::sendMessageToWidget (manager.cpp:2011)
156 Aseprite.EXE                    0x7ff760ab8c85      ui::Manager::pumpQueue (manager.cpp:1897)
157 Aseprite.EXE                    0x7ff760ab5b34      ui::Manager::dispatchMessages (manager.cpp:881)
158 Aseprite.EXE                    0x7ff760ab526d      ui::Manager::_runModalWindow (manager.cpp:1625)
159 Aseprite.EXE                    0x7ff760ab0a63      ui::Window::openWindowInForeground (window.cpp:405)
160 Aseprite.EXE                    0x7ff760acda0a      ui::Alert::show (alert.cpp:184)
161 Aseprite.EXE                    0x7ff760acdaff      ui::Alert::show (alert.cpp:173)
162 Aseprite.EXE                    0x7ff760a2183f      clip::lock::impl::impl (clip_win.cpp:221)
163 Aseprite.EXE                    0x7ff760a20d33      clip::lock::lock (clip.cpp:30)
164 Aseprite.EXE                    0x7ff760a21294      clip::has (clip.cpp:76)
165 Aseprite.EXE                    0x7ff7606bbe99      app::Clipboard::format (clipboard.cpp:302)
166 Aseprite.EXE                    0x7ff7606e5797      app::PaletteView::onPaint (palette_view.cpp:961)
167 Aseprite.EXE                    0x7ff760aaa911      ui::Widget::paintEvent (widget.cpp:1231)
168 Aseprite.EXE                    0x7ff760aaa09b      ui::Widget::onProcessMessage (widget.cpp:1572)
169 Aseprite.EXE                    0x7ff760ab9509      ui::Manager::sendMessageToWidget (manager.cpp:2011)
170 Aseprite.EXE                    0x7ff760ab8c85      ui::Manager::pumpQueue (manager.cpp:1897)
171 Aseprite.EXE                    0x7ff760ab5b34      ui::Manager::dispatchMessages (manager.cpp:881)
172 Aseprite.EXE                    0x7ff760ab526d      ui::Manager::_runModalWindow (manager.cpp:1625)
173 Aseprite.EXE                    0x7ff760ab0a63      ui::Window::openWindowInForeground (window.cpp:405)
174 Aseprite.EXE                    0x7ff760acda0a      ui::Alert::show (alert.cpp:184)
175 Aseprite.EXE                    0x7ff760acdaff      ui::Alert::show (alert.cpp:173)
176 Aseprite.EXE                    0x7ff760a2183f      clip::lock::impl::impl (clip_win.cpp:221)
177 Aseprite.EXE                    0x7ff760a20d33      clip::lock::lock (clip.cpp:30)
178 Aseprite.EXE                    0x7ff760a21294      clip::has (clip.cpp:76)
179 Aseprite.EXE                    0x7ff7606bbe99      app::Clipboard::format (clipboard.cpp:302)
180 Aseprite.EXE                    0x7ff7606e5797      app::PaletteView::onPaint (palette_view.cpp:961)
181 Aseprite.EXE                    0x7ff760aaa911      ui::Widget::paintEvent (widget.cpp:1231)
182 Aseprite.EXE                    0x7ff760aaa09b      ui::Widget::onProcessMessage (widget.cpp:1572)
183 Aseprite.EXE                    0x7ff760ab9509      ui::Manager::sendMessageToWidget (manager.cpp:2011)
184 Aseprite.EXE                    0x7ff760ab8c85      ui::Manager::pumpQueue (manager.cpp:1897)
185 Aseprite.EXE                    0x7ff760ab5b34      ui::Manager::dispatchMessages (manager.cpp:881)
186 Aseprite.EXE                    0x7ff760ab526d      ui::Manager::_runModalWindow (manager.cpp:1625)
187 Aseprite.EXE                    0x7ff760ab0a63      ui::Window::openWindowInForeground (window.cpp:405)
188 Aseprite.EXE                    0x7ff760acda0a      ui::Alert::show (alert.cpp:184)
189 Aseprite.EXE                    0x7ff760acdaff      ui::Alert::show (alert.cpp:173)
190 Aseprite.EXE                    0x7ff760a2183f      clip::lock::impl::impl (clip_win.cpp:221)
191 Aseprite.EXE                    0x7ff760a20d33      clip::lock::lock (clip.cpp:30)
192 Aseprite.EXE                    0x7ff760a21294      clip::has (clip.cpp:76)
193 Aseprite.EXE                    0x7ff7606bbe99      app::Clipboard::format (clipboard.cpp:302)
194 Aseprite.EXE                    0x7ff7606e5797      app::PaletteView::onPaint (palette_view.cpp:961)
195 Aseprite.EXE                    0x7ff760aaa911      ui::Widget::paintEvent (widget.cpp:1231)
196 Aseprite.EXE                    0x7ff760aaa09b      ui::Widget::onProcessMessage (widget.cpp:1572)
197 Aseprite.EXE                    0x7ff760ab9509      ui::Manager::sendMessageToWidget (manager.cpp:2011)
198 Aseprite.EXE                    0x7ff760ab8c85      ui::Manager::pumpQueue (manager.cpp:1897)
199 Aseprite.EXE                    0x7ff760ab5b34      ui::Manager::dispatchMessages (manager.cpp:881)
200 Aseprite.EXE                    0x7ff760ab526d      ui::Manager::_runModalWindow (manager.cpp:1625)
201 Aseprite.EXE                    0x7ff760ab0a63      ui::Window::openWindowInForeground (window.cpp:405)
202 Aseprite.EXE                    0x7ff760acda0a      ui::Alert::show (alert.cpp:184)
203 Aseprite.EXE                    0x7ff760acdaff      ui::Alert::show (alert.cpp:173)
204 Aseprite.EXE                    0x7ff760a2183f      clip::lock::impl::impl (clip_win.cpp:221)
205 Aseprite.EXE                    0x7ff760a20d33      clip::lock::lock (clip.cpp:30)
206 Aseprite.EXE                    0x7ff760a21294      clip::has (clip.cpp:76)
207 Aseprite.EXE                    0x7ff7606bbe99      app::Clipboard::format (clipboard.cpp:302)
208 Aseprite.EXE                    0x7ff7606e5797      app::PaletteView::onPaint (palette_view.cpp:961)
209 Aseprite.EXE                    0x7ff760aaa911      ui::Widget::paintEvent (widget.cpp:1231)
210 Aseprite.EXE                    0x7ff760aaa09b      ui::Widget::onProcessMessage (widget.cpp:1572)
211 Aseprite.EXE                    0x7ff760ab9509      ui::Manager::sendMessageToWidget (manager.cpp:2011)
212 Aseprite.EXE                    0x7ff760ab8c85      ui::Manager::pumpQueue (manager.cpp:1897)
213 Aseprite.EXE                    0x7ff760ab5b34      ui::Manager::dispatchMessages (manager.cpp:881)
214 Aseprite.EXE                    0x7ff760ab526d      ui::Manager::_runModalWindow (manager.cpp:1625)
215 Aseprite.EXE                    0x7ff760ab0a63      ui::Window::openWindowInForeground (window.cpp:405)
216 Aseprite.EXE                    0x7ff760acda0a      ui::Alert::show (alert.cpp:184)
217 Aseprite.EXE                    0x7ff760acdaff      ui::Alert::show (alert.cpp:173)
218 Aseprite.EXE                    0x7ff760a2183f      clip::lock::impl::impl (clip_win.cpp:221)
219 Aseprite.EXE                    0x7ff760a20d33      clip::lock::lock (clip.cpp:30)
220 Aseprite.EXE                    0x7ff760a21294      clip::has (clip.cpp:76)
221 Aseprite.EXE                    0x7ff7606bbe99      app::Clipboard::format (clipboard.cpp:302)
222 Aseprite.EXE                    0x7ff7606e5797      app::PaletteView::onPaint (palette_view.cpp:961)
223 Aseprite.EXE                    0x7ff760aaa911      ui::Widget::paintEvent (widget.cpp:1231)
224 Aseprite.EXE                    0x7ff760aaa09b      ui::Widget::onProcessMessage (widget.cpp:1572)
225 Aseprite.EXE                    0x7ff760ab9509      ui::Manager::sendMessageToWidget (manager.cpp:2011)
226 Aseprite.EXE                    0x7ff760ab8c85      ui::Manager::pumpQueue (manager.cpp:1897)
227 Aseprite.EXE                    0x7ff760ab5b34      ui::Manager::dispatchMessages (manager.cpp:881)
228 Aseprite.EXE                    0x7ff760ab526d      ui::Manager::_runModalWindow (manager.cpp:1625)
229 Aseprite.EXE                    0x7ff760ab0a63      ui::Window::openWindowInForeground (window.cpp:405)
230 Aseprite.EXE                    0x7ff760acda0a      ui::Alert::show (alert.cpp:184)
231 Aseprite.EXE                    0x7ff760acdaff      ui::Alert::show (alert.cpp:173)
232 Aseprite.EXE                    0x7ff760a2183f      clip::lock::impl::impl (clip_win.cpp:221)
233 Aseprite.EXE                    0x7ff760a20d33      clip::lock::lock (clip.cpp:30)
234 Aseprite.EXE                    0x7ff760a21294      clip::has (clip.cpp:76)
235 Aseprite.EXE                    0x7ff7606bbe99      app::Clipboard::format (clipboard.cpp:302)
236 Aseprite.EXE                    0x7ff7606e5797      app::PaletteView::onPaint (palette_view.cpp:961)
237 Aseprite.EXE                    0x7ff760aaa911      ui::Widget::paintEvent (widget.cpp:1231)
238 Aseprite.EXE                    0x7ff760aaa09b      ui::Widget::onProcessMessage (widget.cpp:1572)
239 Aseprite.EXE                    0x7ff760ab9509      ui::Manager::sendMessageToWidget (manager.cpp:2011)
240 Aseprite.EXE                    0x7ff760ab8c85      ui::Manager::pumpQueue (manager.cpp:1897)
241 Aseprite.EXE                    0x7ff760ab5b34      ui::Manager::dispatchMessages (manager.cpp:881)
242 Aseprite.EXE                    0x7ff760ab526d      ui::Manager::_runModalWindow (manager.cpp:1625)
243 Aseprite.EXE                    0x7ff760ab0a63      ui::Window::openWindowInForeground (window.cpp:405)
244 Aseprite.EXE                    0x7ff760acda0a      ui::Alert::show (alert.cpp:184)
245 Aseprite.EXE                    0x7ff760acdaff      ui::Alert::show (alert.cpp:173)
246 Aseprite.EXE                    0x7ff760a2183f      clip::lock::impl::impl (clip_win.cpp:221)
247 Aseprite.EXE                    0x7ff760a20d33      clip::lock::lock (clip.cpp:30)
248 Aseprite.EXE                    0x7ff760a21294      clip::has (clip.cpp:76)
249 Aseprite.EXE                    0x7ff7606bbe99      app::Clipboard::format (clipboard.cpp:302)
250 Aseprite.EXE                    0x7ff7606e5797      app::PaletteView::onPaint (palette_view.cpp:961)
251 Aseprite.EXE                    0x7ff760aaa911      ui::Widget::paintEvent (widget.cpp:1231)
252 Aseprite.EXE                    0x7ff760aaa09b      ui::Widget::onProcessMessage (widget.cpp:1572)
253 Aseprite.EXE                    0x7ff760ab9509      ui::Manager::sendMessageToWidget (manager.cpp:2011)
254 Aseprite.EXE                    0x7ff760ab8c85      ui::Manager::pumpQueue (manager.cpp:1897)
255 Aseprite.EXE                    0x7ff760ab5b34      ui::Manager::dispatchMessages (manager.cpp:881)
256 Aseprite.EXE                    0x7ff760ab526d      ui::Manager::_runModalWindow (manager.cpp:1625)

[martincapello]

To be able to reproduce this I've created a basic win32 app that opens the clipboard without closing it so it will be locked when trying to use it from Aseprite.
The stack overflow is due to the following combination of factors:

1. The timer of the marching ants is started once we copy a range of colors in the palette, no matter if the clipboard was locked or not. If it was, it shows an alert dialog telling us about the clipboard being not accessible. This timer generates a regular invalidation of the paletteview widget, which means executing its onPaint method at regular intervals to draw the marching ants.
2. The onPaint method of the paletteview calls the format() method of the Clipboard instance, which in turn tries to open the locked Windows clipboard, causing to open the alert dialog. But, when trying to open this alert, the message queue has some paint messages which are processed in the alert's message loop, then the onPaint method is called again for the paletteview, and this repeats recursively until the stack overflow.

Some ideas to fix this:

1. Avoid showing the alert dialog when calling Clipboard's format() method inside the paletteview's onPaint method.
2. Avoid showing the alert anytime the Clipboard's format() method is called.
3. Avoid starting the marching ants when the clipboard is locked (I think this is not an option since Aseprite should be able to work without native clipboard support)