I try to work on the photographs I have uploaded in lightroom. Unfortunately on the slide develop (German: entwickeln) I can not see the photograph in the middle it is just a blue screen and therefore I can not really see what I am changing. Does anbody of you know how to get the photograph in the middle instead of the blue field? Thank you
Go to Edit > Preferences > Performance (Lightroom > Preferences > Performance on a Mac) and uncheck Use graphics processor.
Thank you so much, it worked out