https://bugs.winehq.org/show_bug.cgi?id=48174
--- Comment #58 from Rafał Mużyło galtgendo@o2.pl --- So, I've stumbled upon something that might, but doesn't have to be related...
https://github.com/atom0s/Steamless/pull/97
The commit referenced there basically just changes a 4 byte char array (UnmanagedType.ByValArray) into UInt32 to make things work.
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