Unreal Engine 5.3 Preview

hi @lucoiso ,
My only suggestion is to try my 5.4 binary, just downloads and starts.
This has all driver diagnostics and instead of crashing on PC with unkown graphic cards, it prints a diagnostic message and carries on.
Load the Lumen bug test and try to see if you get shadows. The failing PC had the WRONG drivers loaded and detected the problem

see
Luoshuang’s GPULightmass - Development / Rendering - Epic Developer Community Forums (unrealengine.com)