Video disappears when moved to another screen

[macgo-dev]

When the video window moved from build-in display to an external display, or vice versa, the video disappears.

App version 3.3.4 - 3.3.9
macOS Mojave 10.14.2
MacBook Pro 15-inch (Later 2013)
Intel Iris Pro 5200 / Nvidia GeForce GT 750M

[macgo-dev]

This issue can be reproduced on all Macs around me with macOS 10.14.2 (18C54) or 10.14.3 Beta (18D21c). But 10.14 and earlier macOS are not affected.

On macOS 10.14.2, if an app is linked with 10.14 SDK, openGLPixelFormatForDisplayMask:of NSOpenGLLayer is invoked with an invalid zero value of mask. This seems like a bug introduced in macOS 10.14.2.

[macgo-dev]

This issue still can be reproduced on 10.14.3 Beta 2 (18D32a). I've filed a bug report at Apple Bug Reporter earlier today.

[macgo-dev]

I've just submitted a TSI at Apple DTS for this issue. Hope it can get a higher priority.

[macgo-dev]

According to Apple DTS, the bug report is still being analyzed for root cause.

[macgo-dev]

This issue seems to have been fixed in Mojave 10.14.4 Beta (18E205e).