I am running Windows 10. Lightroom locks up (stops responding) when shifting between the Library and Develop module. I have checked for updates.
I am a long time Lightroom user and encountered this problem first when I installed Lightroom Classic CC. The problem appeared to be the system having difficulty redrawing the screen correctly, so this makes sense. It was much worse when transferring files between LR and PhotoshopCC . Thank you for this solution which has made my day! - I thought I was going to have to buy a new computer - so A BIG thank you from me!