Robin Kertels

That sounds more like a compositor issue. There's nothing in D9VK (or WineD3D for that matter) to allow or block alt tabbing.

Does alt tabbing work with D3D11 DXVK games?

I can't really tell you anything except that it feels perfectly fine on my system. Make sure you don't have any Vulkan layers like overlays or recording tools installed. Those...

RE2 is known to work. Please try installing d3dcompiler and latest RADV. Make a new issue if the problem persists.

Please make an apitrace.

Please add an apitrace so we can look into this.

Can you reproduce this with Proton Experimental (or just DXVK master)? The apitrace doesnt have any flickering.

Could you upload your save file?

Can you try running the game with a DXVK config file and add the line `d3d9.invariantPosition = True` to that? This seems to be z-fighting. The game draws the "clean"...

As a rule of thumb: if your trace is < 100mb you didnt do it correctly. Just download a apitrace windows build from their website (x86 version), grab the d3d9.dll...