https://bugs.winehq.org/show_bug.cgi?id=43367
--- Comment #14 from Zebediah Figura z.figura12@gmail.com --- I'm very confused about several things that are showing up in the log, but the freeze is probably pretty clear:
0040:trace:quartz:VideoWindow_NotifyOwnerMessage (0x52f54e0/0x52f54f8)->(0001008c, 256, 0000000d, 001c0001)
[later]
0036:trace:strmbase:BaseControlWindowImpl_put_Visible (0x6b3e548/0x6b3e570)->(0) 0040:err:ntdll:RtlpWaitForCriticalSection section 0x52f5594 "/home/ubuntu/buildbot/runners/wine/wine-src/dlls/quartz/filtergraph.c: IFilterGraphImpl.cs" wait timed out in thread 0040, blocked by 0036, retrying (60 sec)
Control window message processing doesn't work the way it's supposed to. I have patches that address this.