Robin Kertels

Did you search for players in that apitrace? It ends after this: 

Regular songs work fine. I think it only happens in online play.

Yes.

That trace finishes just fine too. If you don't need to play online, can you list the **precise** steps I'd have to take to make it softlock?

Your apitrace is ~2 seconds of ingame frames and 30s of loading screens. That's not a lot to go off. Something that's definitely noticable though: it creeps up to 12GB...

I strongly suspect this is a game bug. It creates a LOT of textures and never frees them.

AMD GPUs also have better memory management on Linux than Nvidia ones.

The fun part is that it doesn't even use most of the textures.

DXVK didn't use submodules before 2.0.

D3D11 doesn't have any APIs to manually handle shader caching as an application. It's all the responsibility of the driver. So I don't know what the game is storing in...