In photos I have had some strange images after editing.

Hi,

While using Photos to edit images I have had some strange results. Most of the time I have no problem but....

This screen shot shows how an image is broken up after editing. I have tried "revert to original" but that does little to help. Re editing results in an image like this:

The actual image is the thumbnail to the left but the central strip images are from another photo.

It has only happened twice but I cannot explain how I got back to the correct image because I tried many things, including, revert to original, undo and re edit and a few other fiddles with little success. This is frustrating.

Is this a known bug? Is there a fix?

Doug