If it was an X11 app, there are several things that can cause that that are just unfixable, unfortunately (e.g. XLockDisplay). If it was a Wayland app, that sou

If it was an X11 app, there are several things that can cause that that are just unfixable, unfortunately (e.g. XLockDisplay). If it was a Wayland app, that sounds like a bug in the compositor. If you still have a repro case, please file it.