Green and blue stripes - error?

[H38405386rxrb]

Hi, 

Anyone know what causes this? In Library all is normal, when I switch to devellop these lines and scratches show up. Tried closing the application, the computer, re-importing the files but same thing keeps happening.

[dj_paige]

Many reports about this happening when you have an AMD GPU. What GPU (make and model) are you using?

Please see this thread for suggestions: https://community.adobe.com/t5/lightroom-classic-discussions/gpu-problems-on-lightroom-with-the-new-...

There are other threads dealing with this problem as well. I suggest you search for them.

[AxelMatt]

Try is to switch off the GPU support from the Lightroom preferences and check if that helps to fix the issue.

Go to Lightroom > Preferences > Performance tab > Uncheck "Use Graphics Processor" > Restart Lightroom.

https://helpx.adobe.com/lightroom-classic/kb/troubleshoot-gpu.html

If this doesn't help we need more informations about your environment as @dj_paige wrote. 

Please provide also a copy of your 'System Info'. This can be get from the LrC Help > System Info menu item. There's a copy button in the System Info dialog. Press this button and paste the info into your next forum post.