Went back to my original profile, bug returned. Disabled "Legacy Fullscreen Support" in Workarounds (within CCSM) and that solves it (well, works around it). FWIW re-enabling LFS brings the bug right back. Happy to provide any more info that anyone needs.
Went back to my original profile, bug returned. Disabled "Legacy Fullscreen Support" in Workarounds (within CCSM) and that solves it (well, works around it). FWIW re-enabling LFS brings the bug right back. Happy to provide any more info that anyone needs.