Why UE4 hangs?

Hello, I am a new user, just installed UE4.26, opening a default car project with raytracing enabled. As soon as i start clicking on right top on layer hierarchy, selecting some light nodes or if i try to build the project - it stops responding. After that i am not even able to end the application from windows task manager. Thought UE4 is a great tool to use, but now i see it’s not even able to perform few little steps. Am i doing something wrong? Is installing more complicated than just installing? How to proceed? Windows 10, Gigabyte RTX3090, latest drivers, everything freshly installed. Thanks

Turned out it was the gaming driver vs studio driver situation. As soon as ive installed studio driver - everything started to work.