Do you use SteamVR ? Since the UE5 builds, SteamVR doesn't start anymore when I launch the game. If I launch it beforehand and use the VR shortcut, it switch to the headset (valvle index for me) but it's broken. Only one eye is kinda working.when you start the game the VR headset goes to black screen.
After you enter a game (sandbox, etc), press CRTL+0 to render in the headset, then it goes to VR rendering.
The previous builds still works.
Any ideas ?