Anybody got any ideas on this? I’m having this problem on several of my sites now. Interesting thing, it’s not a problem when the site is new, but over time, it seems to happen.
have you tried going into the folder and looking for a .thumb file? if you have one, delete it and let the editor make a new one.
I see the file names and the corresponding delete/rename/edit icons, arranged in grid fashion. So, everything but the thumbnail.
I can type the URL to the thumb and see it in a browser, so I know its "world-readable". Also, I tried: 1) chown’ed the thumbs to an admin type user name (ie, not apache), 2) deleted the thumbs to let them be recreated. Still no luck.