Hey,

Could you grab the unity-2022 branch of this repo and apply your patch from VisualPinball/VisualPinball.Unity.Hdrp#22 to the prefabs here? Thing is I've also moved the prefabs, but not to HDRP, but to this repo.

As far as I can see, it touches only bumper and gate.

Actually, take the feature/sounds-rebased branch, which contains your branch here on top of mine. You can test it with the feature/sounds-rebased branch in the main repo.

I'm now rebasing your HDRP branch by re-instating the missing files and applying code changes only, it'll also be called feature/sounds-rebased.