I can't add a pic to an existing modification (that didn't have a pic).
Nor can I replace the existing pic to an existing modification.
Nor can I remove a pic from a modification.
I had trouble adding a picture to my gallery recently. Just got a blank page after clicking the Add New Image button. It eventually worked after I shrunk the picture down quite a lot, but the original was within the size limits.
I got my pics working in the garage now.
I used smaller resolution pics - I never got a message telling me they were too big (resolution or filesize), just got a blank page!!! And the ones I tried a few days ago were no bigger than some of the pics I've got in the garage already
Anyway, the 'remove image' didn't work for me