Hi everyone,
Since I had to search a little bit and it's not clearly available, here's a tip to fix a huge bug in the BlightTown area which made the game unplayable (can't see anything) :
- Download the DirectX replacement files from here : https://mega.nz/file/EHhhWYYZ#cxOOM_bA9ILODaazs9swWjQRk0K6DVlUxiT9FCKjHd8
- Open the C: drive of the bottle you've installed the game in, and go to /windows/system32
- Backup the files in system32 with the same name than the files you downloaded (copy them or just rename them with .bak)
- Copy/paste and replace with the files you downloaded in the system32 folder
- Done ! No more problems !
I found this solution here : https://github.com/doitsujin/dxvk/issues/405#issuecomment-1164949112
The games runs now damn well without issues so far !