JPEG file not thumbnailed
File doesn't get a thumbnail in nautilus, but it's correctly read by eog. I'll attach the first page of the file. I first encountered the problem when dealing with the archive it came in, when trying to read the full comic book with Books and then evince:
** (org.gnome.Books:3): WARNING **: 13:49:22.042: Fatal error reading '001.jpg' in archive: Unrecognised image file format
My guess is mime-type confusion.