OctoWow - Forums

Turn off DXVK in the mods.

Try using GE-Proton
I had a different issue than you are, but who knows, maybe it'll help you as well

SOLVED:
Installed GE-Proton to get around the ENOTSUP error.
After that i kept getting an access violation error - Seems like dxvk either got re-enabled, or it's causing issues now. (I don't remember whether it was turned on or off)

If you're having the same issues as me, hopefully, this will help ...

I don't know if any of the prior versions is the culprit, as i was on 1.2.0 until now.

Edit: I'm launching the launcher through Lutris, which uses Wine (Proton 9.0).
Edit 2: Updated to 1.3.5, issue still persists.