To be clear there are DOZENS of ads missing their first primary photo and associated thumbnail, I only pulled out a couple to show you as examples. Do you really want me to go through all 517 and count how many have been affected? I can, but I thought you understood the problem was much larger than just a couple of ads. Which reminds me I need to go check your sample ads this morning and see if they are still OK or not.
If the Cron job isn't changing the thumbnail link to be a bad link then what is? It would be impossible for different people to all fail in editing their primary image only and to all end up with the same bogus .jpg number and that number keeps changing as witnessed above. I think I need to go into the database and look and see what the thumbnail value is. Is it actually that bogus .jpg number photo or is it simply blank, etc, or is the correct value really there?
BTW I can shoot you the plesk control panel log in info in email if you want to look around the database as well.