https://bugs.winehq.org/show_bug.cgi?id=48665
--- Comment #6 from aguertin+wine@aguertin.net --- (In reply to Andrew Wesie from comment #3)
Created attachment 66571 [details] Fix using ntdll-WRITECOPY staging patchset.
I used the existing ntdll-WRITECOPY staging patchset to hopefully fix Runeterra. Please test and report if it helps.
I can also confirm that this fixes the problem with wine-staging-5.5. Thank you!