Since the recent upgrade from 5.6 to 5.7, I've tried making edits but they don't occur right away. For example, I adjust exposure or use a brush on a certain area but the changes don't occur. If I back out to grid view, and then go back to that image, I see the change.
Any ideas/thoughts? I shouldn't have any delay in computer performance since I'm working on a brand new iMac with plenty of space and few other apps running.