quick3d examples crashes or hangs on exit on wayland

All quick3d examples will sometimes crash or hang on exit when using Wayland on Linux. Using X11 works fine. Note that this only happens when running the threaded render loop.

These are the backtraces:

OpenGL - crash

1 ?? 0x7fffee6672cd
2 ?? 0x7fffee667864
3 ?? 0x7fffece9e491
4 ?? 0x7fffece96994
5 ?? 0x7fffecef5afb
6 ?? 0x7fffecef6e7f
7 ?? 0x7fffecf2b045
8 ?? 0x7fffecf2c29e
9 QOpenGLFunctions::glClear qopenglfunctions.h 624 0x7ffff54004a9
10 QRhiGles2::executeCommandBuffer qrhigles2.cpp 2695 0x7ffff53edd95
11 QRhiGles2::endFrame qrhigles2.cpp 1664 0x7ffff53ef876
12 QRhi::endFrame qrhi.cpp 6463 0x7ffff51a0f19
13 QSGRenderThread::syncAndRender qsgthreadedrenderloop.cpp 796 0x7ffff6ef2fc8
14 QSGRenderThread::run qsgthreadedrenderloop.cpp 987 0x7ffff6ef3f3e
15 QThreadPrivate::start qthread_unix.cpp 330 0x7ffff47ff868
16 start_thread 0x7ffff3fbc299
17 clone 0x7ffff3ee5053

Vulkan - hangs

1 poll 0x7ffff3eda37f
2 wl_display_dispatch_queue 0x7ffff0a9ff46
3 ?? 0x7fffccb14774
4 ?? 0x7fffcccfdb23
5 ?? 0x7fffcc98e2db
6 QRhiVulkan::endFrame qrhivulkan.cpp 1892 0x7ffff55dd975
7 QRhi::endFrame qrhi.cpp 6463 0x7ffff51a0f19
8 QSGRenderThread::syncAndRender qsgthreadedrenderloop.cpp 796 0x7ffff6ef2fc8
9 QSGRenderThread::run qsgthreadedrenderloop.cpp 987 0x7ffff6ef3f3e
10 QThreadPrivate::start qthread_unix.cpp 330 0x7ffff47ff868
11 start_thread 0x7ffff3fbc299
12 clone 0x7ffff3ee5053