OBS 26.1 Hangs on macOS Catalina 10.15.7

[evillgenius75]

Platform

Operating system and version: macOS Catalina 10.15.7
OBS Studio version: 26.1

Expected Behavior

OBS launches after running from LaunchPad

Current Behavior

OBS will not load and a Force quit reports a hang

Steps to Reproduce

1. Install OBS from .pkg download
2. Run OBS from Launchpad

Additional information

Apple Error Report:
Date/Time: 2021-01-04 09:09:29 -0600
End time: 2021-01-04 09:09:30 -0600
OS Version: Mac OS X 10.15.7 (Build 19H114)
Architecture: x86_64h
Report Version: 29

Data Source: Stackshots
Shared Cache: 0x9f1b000 4A76F6C9-AF4F-3518-8B44-C276F5C6CF06

Command: obs
Path: /Applications/OBS.app/Contents/Frameworks/libavformat.58.dylib
Version: ??? (???)
Parent: launchd [1]
PID: 7713

Event: hang
Duration: 1.00s
Steps: 11 (100ms sampling interval)

Hardware model: MacBookPro16,1
Active cpus: 12
Boot args: chunklist-security-epoch=0 -chunklist-no-rev2-dev

Time Awake Since Boot: 2700s

---

Timeline format: stacks are sorted chronologically
Use -i and -heavy to re-report with count sorting

Heaviest stack for the main thread of the target process:
11 start + 1 (libdyld.dylib + 109769) [0x7fff710d2cc9]
11 main + 5032 (obs + 203832) [0x10e9b6c38]
11 OBSApp::OBSInit() + 505 (obs + 187401) [0x10e9b2c09]
11 OBSBasic::OBSInit() + 201 (obs + 333001) [0x10e9d64c9]
11 OBSBasic::ResetVideo() + 824 (obs + 340232) [0x10e9d8108]
11 obs_reset_video + 471 (libobs.0.dylib + 411223) [0xf430657]
11 gs_create + 304 (libobs.0.dylib + 111296) [0xf3e72c0]
11 device_create + 103 (libobs-opengl.so + 54583) [0x27c79537]
11 gl_platform_create + 18 (libobs-opengl.so + 17074) [0x27c702b2]
11 gl_context_create + 80 (libobs-opengl.so + 17328) [0x27c703b0]
11 -[NSOpenGLPixelFormat initWithAttributes:] + 52 (AppKit + 4083317) [0x7fff3467de75]
11 CGLChoosePixelFormat + 85 (OpenGL + 36325) [0x7fff41b70de5]
11 ??? (OpenGL + 39068) [0x7fff41b7189c]
11 ??? (OpenGL + 25569) [0x7fff41b6e3e1]
11 cglBadApplicationNotMuxAwareLockDown + 45 (OpenGL + 25249) [0x7fff41b6e2a1]
11 ??? (OpenGL + 23196) [0x7fff41b6da9c]
11 IOServiceOpen + 39 (IOKit + 13272) [0x7fff39ddf3d8]
11 io_service_open_extended + 137 (IOKit + 13426) [0x7fff39ddf472]
11 mach_msg_trap + 10 (libsystem_kernel.dylib + 3578) [0x7fff71213dfa]
11 hndl_mach_scall64 + 22 (kernel + 786982) [0xffffff80002c0226]
11 mach_call_munger64 + 517 (kernel + 2273349) [0xffffff800042b045]
11 mach_msg_overwrite_trap + 722 (kernel + 1100514) [0xffffff800030cae2]
11 ipc_kmsg_send + 309 (kernel + 1006901) [0xffffff80002f5d35]
11 ipc_kobject_server + 568 (kernel + 1176456) [0xffffff800031f388]
11 ??? (kernel + 2105487) [0xffffff800040208f]
11 is_io_service_open_extended + 297 (kernel + 8757817) [0xffffff8000a5a239]
11 ??? (AppleMuxControl2 + 34744) [0xffffff7f83f7a7b8]
11 IOWorkLoop::runAction(int ()(OSObject, void, void, void, void), OSObject, void, void, void*, void*) + 62 (kernel + 8561374) [0xffffff8000a2a2de]
*11 ??? (AppleMuxControl2 + 34604) [0xffffff7f83f7a72c]
*11 ??? (AppleMuxControl2 + 36466) [0xffffff7f83f7ae72]
*11 ??? (AppleMuxControl2 + 36693) [0xffffff7f83f7af55]
*11 ??? (AppleMuxControl2 + 58793) [0xffffff7f83f805a9]
*11 ??? (AppleMuxControl2 + 4450) [0xffffff7f83f73162]
11 IOEventSource::sleepGate(void, unsigned int) + 75 (kernel + 8566475) [0xffffff8000a2b6cb]
11 IOGraphicsSystemWorkLoop::sleepGate(void, unsigned int) + 9 (IOGraphicsFamily + 139121) [0xffffff7f83f38f71]
11 IOGraphicsWorkLoop::sleepGate(void, unsigned int) + 100 (IOGraphicsFamily + 36532) [0xffffff7f83f1feb4]
*11 lck_mtx_sleep + 112 (kernel + 1222832) [0xffffff800032a8b0]
*11 thread_block_reason + 175 (kernel + 1285359) [0xffffff8000339cef]
*11 ??? (kernel + 1291441) [0xffffff800033b4b1]
*11 machine_switch_context + 200 (kernel + 2361416) [0xffffff8000440848]

Process: obs [7713]
UUID: 5C064026-EECF-3BF8-A88F-14DC2893EBC9
Path: /Applications/OBS.app/Contents/Frameworks/libavformat.58.dylib
Architecture: x86_64
Parent: launchd [1]
UID: 808689
Footprint: 14.38 MB
Start time: 2021-01-04 09:09:29 -0600
End time: 2021-01-04 09:09:30 -0600
Num samples: 11 (1-11)
CPU Time: 0.023s (53.6M cycles, 58.1M instructions, 0.92c/i)
Note: 1 idle work queue thread omitted

Thread 0x124d9 DispatchQueue "com.apple.main-thread"(1) 11 samples (1-11) priority 46 (base 46)
<thread QoS user interactive (requested user interactive), IO tier 0>
11 start + 1 (libdyld.dylib + 109769) [0x7fff710d2cc9] 1-11
11 main + 5032 (obs + 203832) [0x10e9b6c38] 1-11
11 OBSApp::OBSInit() + 505 (obs + 187401) [0x10e9b2c09] 1-11
11 OBSBasic::OBSInit() + 201 (obs + 333001) [0x10e9d64c9] 1-11
11 OBSBasic::ResetVideo() + 824 (obs + 340232) [0x10e9d8108] 1-11
11 obs_reset_video + 471 (libobs.0.dylib + 411223) [0xf430657] 1-11
11 gs_create + 304 (libobs.0.dylib + 111296) [0xf3e72c0] 1-11
11 device_create + 103 (libobs-opengl.so + 54583) [0x27c79537] 1-11
11 gl_platform_create + 18 (libobs-opengl.so + 17074) [0x27c702b2] 1-11
11 gl_context_create + 80 (libobs-opengl.so + 17328) [0x27c703b0] 1-11
11 -[NSOpenGLPixelFormat initWithAttributes:] + 52 (AppKit + 4083317) [0x7fff3467de75] 1-11
11 CGLChoosePixelFormat + 85 (OpenGL + 36325) [0x7fff41b70de5] 1-11
11 ??? (OpenGL + 39068) [0x7fff41b7189c] 1-11
11 ??? (OpenGL + 25569) [0x7fff41b6e3e1] 1-11
11 cglBadApplicationNotMuxAwareLockDown + 45 (OpenGL + 25249) [0x7fff41b6e2a1] 1-11
11 ??? (OpenGL + 23196) [0x7fff41b6da9c] 1-11
11 IOServiceOpen + 39 (IOKit + 13272) [0x7fff39ddf3d8] 1-11
11 io_service_open_extended + 137 (IOKit + 13426) [0x7fff39ddf472] 1-11
11 mach_msg_trap + 10 (libsystem_kernel.dylib + 3578) [0x7fff71213dfa] 1-11
11 hndl_mach_scall64 + 22 (kernel + 786982) [0xffffff80002c0226] 1-11
11 mach_call_munger64 + 517 (kernel + 2273349) [0xffffff800042b045] 1-11
11 mach_msg_overwrite_trap + 722 (kernel + 1100514) [0xffffff800030cae2] 1-11
11 ipc_kmsg_send + 309 (kernel + 1006901) [0xffffff80002f5d35] 1-11
11 ipc_kobject_server + 568 (kernel + 1176456) [0xffffff800031f388] 1-11
11 ??? (kernel + 2105487) [0xffffff800040208f] 1-11
11 is_io_service_open_extended + 297 (kernel + 8757817) [0xffffff8000a5a239] 1-11
11 ??? (AppleMuxControl2 + 34744) [0xffffff7f83f7a7b8] 1-11
11 IOWorkLoop::runAction(int ()(OSObject, void, void, void, void), OSObject, void, void, void*, void*) + 62 (kernel + 8561374) [0xffffff8000a2a2de] 1-11
*11 ??? (AppleMuxControl2 + 34604) [0xffffff7f83f7a72c] 1-11
*11 ??? (AppleMuxControl2 + 36466) [0xffffff7f83f7ae72] 1-11
*11 ??? (AppleMuxControl2 + 36693) [0xffffff7f83f7af55] 1-11
*11 ??? (AppleMuxControl2 + 58793) [0xffffff7f83f805a9] 1-11
*11 ??? (AppleMuxControl2 + 4450) [0xffffff7f83f73162] 1-11
11 IOEventSource::sleepGate(void, unsigned int) + 75 (kernel + 8566475) [0xffffff8000a2b6cb] 1-11
11 IOGraphicsSystemWorkLoop::sleepGate(void, unsigned int) + 9 (IOGraphicsFamily + 139121) [0xffffff7f83f38f71] 1-11
11 IOGraphicsWorkLoop::sleepGate(void, unsigned int) + 100 (IOGraphicsFamily + 36532) [0xffffff7f83f1feb4] 1-11
*11 lck_mtx_sleep + 112 (kernel + 1222832) [0xffffff800032a8b0] 1-11
*11 thread_block_reason + 175 (kernel + 1285359) [0xffffff8000339cef] 1-11
*11 ??? (kernel + 1291441) [0xffffff800033b4b1] 1-11
*11 machine_switch_context + 200 (kernel + 2361416) [0xffffff8000440848] 1-11

Thread 0x12546 11 samples (1-11) priority 31 (base 31) cpu time 0.021s (49.7M cycles, 57.4M instructions, 0.87c/i)
<thread QoS default (requested default), IO tier 0>
11 thread_start + 15 (libsystem_pthread.dylib + 7051) [0x7fff712d2b8b] 1-11
11 _pthread_start + 148 (libsystem_pthread.dylib + 24841) [0x7fff712d7109] 1-11
2 obs_hotkey_thread + 174 (libobs.0.dylib + 493790) [0xf4448de] 1-2
2 os_event_timedwait + 176 (libobs.0.dylib + 260416) [0xf40b940] 1-2
2 __psynch_cvwait + 10 (libsystem_kernel.dylib + 14466) [0x7fff71216882] 1-2
*2 psynch_cvcontinue + 0 (pthread + 18722) [0xffffff7f82b41922] 1-2
1 obs_hotkey_thread + 284 (libobs.0.dylib + 493900) [0xf44494c] 3
1 obs_hotkeys_platform_is_pressed + 227 (libobs.0.dylib + 256819) [0xf40ab33] 3
1 IOHIDDeviceGetValue + 33 (IOKit + 239597) [0x7fff39e167ed] 3
1 ??? (IOHIDLib + 57959) [0x141a5267] 3
1 ??? (IOHIDLib + 54870) [0x141a4656] 3
1 -[NSArray indexOfObject:] + 229 (CoreFoundation + 301378) [0x7fff3702f942] 3
1 objc_release + 103 (libobjc.A.dylib + 34503) [0x7fff6ff1f6c7] (running) 3
8 obs_hotkey_thread + 174 (libobs.0.dylib + 493790) [0xf4448de] 4-11
8 os_event_timedwait + 176 (libobs.0.dylib + 260416) [0xf40b940] 4-11
8 __psynch_cvwait + 10 (libsystem_kernel.dylib + 14466) [0x7fff71216882] 4-11
*8 psynch_cvcontinue + 0 (pthread + 18722) [0xffffff7f82b41922] 4-11

Thread 0x12548 Thread name "audio-io: audio thread" 11 samples (1-11) priority 31 (base 31) cpu time 0.002s (3.9M cycles, 715.0K instructions, 5.44c/i)
<thread QoS default (requested default), IO tier 0>
11 thread_start + 15 (libsystem_pthread.dylib + 7051) [0x7fff712d2b8b] 1-11
11 _pthread_start + 148 (libsystem_pthread.dylib + 24841) [0x7fff712d7109] 1-11
11 audio_thread + 418 (libobs.0.dylib + 177170) [0xf3f7412] 1-11
11 usleep + 53 (libsystem_c.dylib + 490980) [0x7fff71199de4] 1-11
11 __semwait_signal + 10 (libsystem_kernel.dylib + 14166) [0x7fff71216756] 1-11
*11 semaphore_wait_continue + 0 (kernel + 1334000) [0xffffff8000345af0] 1-11

Binary Images:
0xe995000 - 0xebc8fff libavformat.58.dylib <5C064026-EECF-3BF8-A88F-14DC2893EBC9> /Applications/OBS.app/Contents/Frameworks/libavformat.58.dylib
0xf3cc000 - 0xf473fff libobs.0.dylib (0) /Applications/OBS.app/Contents/Frameworks/libobs.0.dylib
0x14197000 - 0x141aafff com.apple.iokit.IOHIDLib 2.0.0 (2.0.0) <7F9377F9-15B8-3BE1-B464-6150546F5D3B> /System/Library/Extensions/IOHIDFamily.kext/Contents/PlugIns/IOHIDLib.plugin/Contents/MacOS/IOHIDLib
0x27c6c000 - 0x27c83fff libobs-opengl.so (0) <3DE8BE29-D3C2-3B3A-92A9-E767FD9569D5> /Applications/OBS.app/Contents/Frameworks/libobs-opengl.so
0x10e985000 - 0x10ebc4fff com.obsproject.obs-studio 26.1.0 (26.1.0) <1E915057-5693-3A59-9B3B-B4F89A906774> /Applications/OBS.app/Contents/MacOS/obs
0x7fff34299000 - 0x7fff35059fff com.apple.AppKit 6.9 (1894.60.100) <322D043D-1140-3486-9523-3F56FF4D8349> /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit
0x7fff36fe6000 - 0x7fff37465fff com.apple.CoreFoundation 6.9 (1677.201) <56B0FE5F-D493-3DF1-ABFF-ECC450268B97> /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation
0x7fff39ddc000 - 0x7fff39e80fff com.apple.framework.IOKit 2.0.2 (1726.140.1) <14223387-6F81-3976-8605-4BC2F253A93E> /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit
0x7fff41b68000 - 0x7fff41b77fff com.apple.opengl 17.10.22 (17.10.22) /System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL
0x7fff6ff17000 - 0x7fff6ff4afff libobjc.A.dylib (787.1) <6DF81160-5E7F-3E31-AA1E-C875E3B98AF6> /usr/lib/libobjc.A.dylib
0x7fff710b8000 - 0x7fff710eefff libdyld.dylib (750.6) <789A18C2-8AC7-3C88-813D-CD674376585D> /usr/lib/system/libdyld.dylib
0x7fff71122000 - 0x7fff711a9fff libsystem_c.dylib (1353.100.2) /usr/lib/system/libsystem_c.dylib
0x7fff71213000 - 0x7fff7123ffff libsystem_kernel.dylib (6153.141.10) /usr/lib/system/libsystem_kernel.dylib
0x7fff712d1000 - 0x7fff712dbfff libsystem_pthread.dylib (416.100.3) <62CB1A98-0B8F-31E7-A02B-A1139927F61D> /usr/lib/system/libsystem_pthread.dylib
*0xffffff7f82b3d000 - 0xffffff7f82b44fff com.apple.kec.pthread 1.0 (1) /System/Library/Extensions/pthread.kext/Contents/MacOS/pthread
*0xffffff7f83f17000 - 0xffffff7f83f43fff com.apple.iokit.IOGraphicsFamily 576.1 (576.1) <2B967D64-A3C5-30D6-87AD-5C4C413EDC1D> /System/Library/Extensions/IOGraphicsFamily.kext/IOGraphicsFamily
*0xffffff7f83f72000 - 0xffffff7f83f83fff com.apple.driver.AppleMuxControl2 5.2.7 (5.2.7) /System/Library/Extensions/AppleGraphicsControl.kext/Contents/PlugIns/AppleMuxControl2.kext/Contents/MacOS/AppleMuxControl2
*0xffffff8000200000 - 0xffffff8000bfffff kernel (6153.141.10) /System/Library/Kernels/kernel

--- Cut for Brevity Full Logs Attached ---
OBSError.txt

[MMichael-S]

I encountered the same issue, and tried 26.1.2 and 26.1.1 are the same, but 26.1.0 is ok.

[PatTheMav]

Does this problem still occur with OBS 28.0.3?

[RytoEX]

We no longer support OBS Studio 26.1 or macOS 10.15. If this occurs with a current version of OBS Studio on macOS 11+, please open a new Issue.