Something to watch out for: as I recall from the days when I used to have problems, even if the image doesn’t upload (probably too large) the name of the image may, I believe, be saved so that when you try again after editing it still gets refused (because, duplicate name). And this same problem, of filename, definitely kicks in if you have a generic name like e ‘IMG_665”. So always try to give an image a unique name. I use three relevant words with hyphens as separators.
