"View Attached Images Inline" is set to "Yes, full size" - when it was set to "Yes, display thumbnails" only a link was displayed as well.
"Thumbnail Creation" is set to "Yes"
When I go to: Maintenance -> General Update Tools -> Rebuild Attachment Thumbnails
Code:
Building Attachment ThumbnailsIf you receive a fatal error or if the process seems to hang, you will need to delete the last attachment listed on the screen then refresh this window.
Processing: Attachment : 1 (jpg) Error
Processing: Attachment : 2 (jpg) Error
Processing: Attachment : 3 (jpg) Error
Processing: Attachment : 4 (jpg) Error
Processing: Attachment : 5 (jpg) Error
Processing: Attachment : 6 (jpg) Error
Processing: Attachment : 7 (jpg) Error
Processing: Attachment : 8 (jpg) Error
Processing: Attachment : 9 (jpg) Error
Processing: Attachment : 10 (jpg) Error
Processing: Attachment : 11 (jpg) Error
Processing: Attachment : 12 (jpg) Error
Processing: Attachment : 13 (jpg) Error
Processing: Attachment : 14 (jpg) Error
Processing: Attachment : 18 (jpg) Error
Processing: Attachment : 19 (jpg) Error
Processing: Attachment : 20 (jpg) Error
Processing: Attachment : 21 (jpg) Error
Processing: Attachment : 23 (jpg) Error
Processing: Attachment : 24 (jpg) Error
Processing: Attachment : 25 (jpg) Error
Processing: Attachment : 28 (jpg) Error
Processing: Attachment : 29 (jpg) Error
Processing: Attachment : 30 (jpg) Error
Processing: Attachment : 31 (jpg) Error