(In reply to Timothy Arceri from comment #3)
> Are you able to test with llvm 9?

I won't have time for that until weekend

(In reply to Timothy Arceri from comment #4)
> I've run it on llvm 8 and mesa 19.0.5 and was unable to reproduce the issues
> seen in the screen capture on my Vega 64.

Just re-tested with mesa 19.0.5+llvm 8, the issue is still there.

It seems to be track-specific. At least it doesn't happen on "Compound", for
example.

Also the game runs fine under Proton/SteamPlay (no glitches/artifacts).