*Panic Report* When using QOpenGLWidget in QDockWidget

After upgrading to MacOS Mojave, operation system always crash (death screen) when I move QDockWidget that contains QOpenGLWidget. QDockWidget without QOpenGLWidget works well.

System crash is not dependent to Qt version, but it is dependent to Macs and operation systems:

affected

• Macmini (Late 2014) Processor 2.6GHz Intel Core i5, Memory 8GB 1600 MHz DDR3, Graphics Intel Iris 1536 MB, Operation system MacOS Mojave 10.14.1, Xcode 10.0, Qt 5.11.2 and Qt 5.10.1
• Macbook Pro (Retina, 13-inch, Mid 2014), Processor 2.6GHz Intel Core i5, Memory 8GB 1600 MHz DDR3, Graphics Intel Iris 1536 MB, Operation system MacOS Mojave 10.14.1, Xcode 10.1, Qt 5.11.2

not affected

• Macbook Air (13-inch, Mid 2012), Processor 1.8 GHz Intel Core i5, Memory 4 GB 1600 MHz DDR3, Graphics Intel HD Graphics 4000 1536 MB, Operation system MacOS Mojave 10.14.1, Xcode 10.1, Qt 5.11.2

I created minimal example to reproduce this issue ( look glwidget-dockwidget-panic.zip )

Temporary solution:

I spend 2 days to find temporary solution, that is based on re-creation QOpenGLWidget with delay after called docking changed event (look glwidget-dckwidget-fixed.zip ). This solution work well (without any crash), I'm using it in large project with many dockwidgets that contains many OpenGL contents (10-15 dockwidgets with 5-10 opengl widgets).