@yayle - Again, I don't see your issue here either. My guess is still that you have another mod that is causing the problem. I even tested these tapes will all my Skill Tapes series added just to make sure there's no typo causing an issue between them.

My advice would be to disable any other VHS tape mod (non Skill Tapes series) you may have installed, and try adding them one-by-one to find the culprit

Heads up.
Pottery tapes doesn't tell if its giving a XP. Unlike other tapes. But I haven't play the tape to test if its giving any XP at all.

Name of the Tape is : Pottery Class E6

thx for your mods. Dawnloaded all of them :) good work.