https://bugs.winehq.org/show_bug.cgi?id=49187
--- Comment #5 from Ski-lleR ski_ller@protonmail.ch --- The lock up on quit is gone on last version of Aftermath (1.10).
Since my kernel (now 5.8) / mesa (now 20.1.7) / wine-staging (now 5.17) was updated, to be sure the it's the new game version that fixed the bug, i retested with the previous version of aftermath (1.9), and the lock up come back.
Also retested with wine-staging 5.9 & Aftermath 1.10, lockup is gone too.