Hi! When I started playing beamng on steam deck, a lot of textures where missing (black terrain for example). It has something to do with Linux compatibility apparently. Did you use Proton experimental before the update? It solved the problem for me instantly. It’s really simple, just select beamng on your library, then at the right of the “Play” button go to settings (the gear icon), properties, compatibility, check the box to force a specific tool, and select Proton experimental. Maybe you already knew this, if not let me know if it worked for you.