https://bugs.winehq.org/show_bug.cgi?id=35041
--- Comment #49 from Robert Griggs rtgriggs@gmail.com --- Would VERY much appreciate getting this bug permanently fixed in mainstream wine without the taskset workaround (reduces performance as the application works on only 1 CPU).
I'll donate $$ to get it permanently fixed for use with Sierrachart.
Additional information: Proton GE 5.9 staging has somehow FIXED the bug with Sierrachart. I've attempted to contact the maintainer but have not had any success. https://github.com/GloriousEggroll/proton-ge-custom
Continued attempts with X11 updates and patches have produced mixed results: https://www.sierrachart.com/SupportBoard.php?ThreadID=29998
Also, I have somewhere seen that possibly a programmer at codeweavers solved this but that is unverified.