Yesterday, I installed the update to Lightroom. After this update, Lightroom does not display the photo in Develop menu, instead it displays a blue patch. Is this due to some setting? Or an issue with Lightroom? When I split the main display pane, into before / after, the before section displays image correctly, but the after section shows just the flat blue patch. What could be the problem, and how to solve it? - please see the screenshots.
Go to Edit > Preferences > Performance, and uncheck Use graphics processor.
If you update your graphics driver, it may be possible to work with this option turned on.
Thank you very much, Per Berntsen. It worked!