Maybe coppermine dev team can help you because it happens to me too.
I want to Config - Watermark images - disable it then Admin Tools - Update thumbs and/or resized photos - Just full sized (if an original copy is available) or Both resized and...
I want to Config - Watermark images - disable it then Admin Tools - Update thumbs and/or resized photos - Just full sized (if an original copy is available) or Both resized and...