Help! Clips glitch and render a completely green screen.

Hello!
I got a new laptop and somehow I can't use DaVinci Resolve anymore.
Whenever I drag in a new clip it plays perfectly until I crop it a little bit. From then on it only shows me half a second of the clip that glitches and plays over and over and if I render that clip it comes out as a fully green screen. Even when I delete the clip and reload it, it still stays glitchy. Can someone tell me how to fix this? I tried DaVinci Resolve 16 and 17 Beta and both show the same error.
I work on a Lenovo ThinkPad E15 G2 with AMD Ryzen 7.
Thank you in advance!
I got a new laptop and somehow I can't use DaVinci Resolve anymore.
Whenever I drag in a new clip it plays perfectly until I crop it a little bit. From then on it only shows me half a second of the clip that glitches and plays over and over and if I render that clip it comes out as a fully green screen. Even when I delete the clip and reload it, it still stays glitchy. Can someone tell me how to fix this? I tried DaVinci Resolve 16 and 17 Beta and both show the same error.
I work on a Lenovo ThinkPad E15 G2 with AMD Ryzen 7.
Thank you in advance!