I see way to much this error in the log.
it makes finding the parts you want hard.
[03/19 14:14:44] [WARNING] [default] QWindowsContext::windowsProc: No Qt Window found for event 0x1c (WM_ACTIVATEAPP), hwnd=0x0x206c2.
The log is filled with this around 40%
It happens with mouse click. A bit overdone log reporting