It seems that OpenMW-CS has started glitching, my guess is that it might be related to Qt5.15, but hard to say. I’ve been working on OpenMW-CS development, but this could go deeper into Qt architecture, or possibly a Qt bug. So far it seems to be specific to XFCE4 though.
How to reproduce this bug:
- Open OpenMW-CS
- Open and close any table view for several times (e.g. Regions)
-> Menus start glitching, menubars disappear, XFCE goes unresponsive.