Hey, @kerooo. Welcome to the Lightroom Community. I'll need more info to help you figure this out. I couldn't find crash reports submitted with the account you've signed in to the community with. If you see a crash dialogue, submit it with your Adobe ID. Check here for more steps: https://adobe.ly/3Wpjx0B
You can also monitor the Windows Event Viewer > Windows Logs > Application Logs to check for error reports and share them here.
Please share more details, like the version of Lightroom, screenshots & video recordings of what you see.
Thanks! Sameer K
(Type '@' and type my name to mention me when you reply)