I am having an issue with media uploads. Sometimes, when uploading a jpg to the library, the image does not show up on the permalink, even though it does appear at the uploads url. When this happens, the thumbnail also does not get created.
If I click on the blank thumbnail, the image is not there, but if I then click Edit More Details from that blank page, the image shows up. If I then click Edit Image, I get this error:
Image data does not exist. Please re-upload the image.
I checked permissions, but that does not appear to be the issue.