https://bugs.winehq.org/show_bug.cgi?id=50362
--- Comment #12 from winehq@trummer.xyz --- (In reply to Ahmad Moghazi from comment #10)
same on wine-6.3 & flstudio_win_20.8.2.2247 how can I fix this issue? can I install fl sdudio with another app like lutris? plz help me.
Please read the thread. There is already a patch, but not yet merged upstream. Using Lutris won't help because it's just a wrapper for Wine.
You can either keep using 20.7.3 for now, or apply the patch and compile it yourself to use 20.8.