I'm trying to recreate a thumbnail for an image in the media gallery. My thumbnail setting is 200x200. When I try to recrop a thumbnail at exactly 200x200, or anything smaller, it does not work and I'm left with no thumbnail at all. Any size larger works.
I can understand this for smaller images, but I don't understand why this doesn't work for recreating a thumbnail at exactly the same size as my settings. Does anyone have an idea on how to fix this?