https://bugs.winehq.org/show_bug.cgi?id=41695
--- Comment #2 from yumekuineru@hotmail.com --- ucrtbase had a similar issue after I set a native override for api-ms-win-crt-math
I tried installing vcrun2015, it used these overrides:
Using native,builtin override for following DLLs: api-ms-win-crt-conio-l1-1-0 api-ms-win-crt-heap-l1-1-0 api-ms-win-crt-locale-l1-1-0 api-ms-win-crt-math-l1-1-0.dll api-ms-win-crt-runtime-l1-1-0 api-ms-win-crt-stdio-l1-1-0 atl140 msvcp140 msvcr140 ucrtbase vcomp140 vcruntime140
Trying to install the alpha client (from an existing backup of a legacy client prefix) went straight to :
wine: Unhandled exception 0x80000003 in thread 85 at address 0x11ec7223 (thread 0085), starting debugger...
without any messages about calls to unimplemented functions. I guess these unimplemented functions either have bugs or need to be implemented in wine still, though I believe they might not be the main issue that stops the client from launching.