Originally Posted by Chuck S
Well my question would be is what have you done recently to the server?
Did you host change your paths in that case you want to check your phpinfo and then in global options and storage options in admin update them to the proper paths.
Wouldn't this effect all images in the gallery though? This seems to affect only some images. To answer you question, the server had its PHP updated last night, this has been among the many fires I have spent this evening putting out.