Photo editing: There are many photo editing apps for Mac, and some are more reliable than others.Accidentally deleted photos can usually be recovered, but you need to hurry up and start the recovery process as soon as possible. Accidental deletion: By far the most common reason responsible for photo loss on Mac is accidental deletion, which often happens when users are organizing their photos and deleting duplications.Photo loss is difficult to prevent because there are many different reasons why it happens: 5 Ways to Perform Photo Recovery on MacĬommon Reasons Responsible for Photo Loss on Mac.Common Reasons Responsible for Photo Loss on Mac.