https://bugs.winehq.org/show_bug.cgi?id=42584
--- Comment #10 from winetest@luukku.com --- (In reply to Kirurgs from comment #9)
No, I have not, as I have fully functioning LOL installation.
I did not mention previously, but I have copied installation from *working* computer (namely Phenom) to Ryzen system, but that did not get anything further.
I have tried standard mesa, mesa-git and in addition to that I have tried all that on ArchLinux as well.
Lately, I see more "err:seh:setup_exception_record stack overflow 832 bytes in thread 0087 eip f73dd8f0 esp 027e0ff0 stack 0x27e0000-0x27e1000-0x28e0000" type of errors right after game shows login screen and before animation appears. When I turn off CSMT and wine-nine, it's more likely that I get the "err:ntdll:RtlpWaitForCriticalSection section 0x870060 "heap.c: HEAP.critSection" wait timed out in thread 005c, blocked by 007e, retrying (60 sec)".
Did I understood correctly that you copied the game from windows install? Even you used Linux based system It's not enough just to copy the game itself, wine needs to setup certain registery keys for sure.