Prism Art Studio Jewelry issue

@Rose_of_Flames  I haven't heard of this exact issue, but it's the kind of thing that could be due to a corrupt ccmerged.package, or perhaps another file associated with store content.  As a test, try installing the studio in a clean Sims 3 folder.  Move the existing folder out of Documents\Electronic Arts and onto your desktop, open the launcher to create a new folder, download and install only the studio, and test in a new save.

If this works, there are a few different ways to approach things from here.  Probably the most straightforward is to reinstall your store content in the new Sims 3 folder, then move your saves and any other files you want to keep from the old folder to the new one.  Here's a description of what the other files are for:

https://sims3.crinrict.com/en/2011/01/faq-user-files.html

If reinstalling everything would be too much of a chore, there are workarounds; let me know if you want to use one, and in that case let me know how much premium store content (just the premium items and worlds, not the rest) you own.

Ok, I followed your instructions and it worked on the test. I'm going to slowly reinstall all my mods, both package and sims3pack, and see if it still works properly and if one of them may have caused the issue. IF so, I'll go from there.

Just for future reference, if I do need a work around, I'll list the store content I use here as well(listed by purchase old-new):

1. Graham's Pet Swap Shop set

2. The Ultimate Career Bundle set

3. Dragon Valley(Gold Bundle Edition if that means anything)

4. The Duke of Bows Renaissance Fair set

5. Brunch at the Old Mill set

6. Hydro Fission Aquarium

7. Jordans' Strands hair

8. Can't Care Hair

9. Humble Harvest Stands set

10 Bohemian Garden set

11. Princess Tiara

12. More Holiday Presents

13. Riverview

14. Diva outfit

15. Elegant Cap Sleeves outfit

16. Weba Yayfoo set

17. Deliciously Indulgent Bakery set

18. Prism Art Studio set

19. SwiftGro Gardening Station

20. Faux Faux Fabulous outfit

21. Happily Ever After Clothing and Hairstyles set

22. Henley Shirt with Laced Collar top

23. Shawl and Apron Plain Combo outfit

24. Stiff as a Board, Light as a Feather Dance Collection set

25. The Archduchess outfit

26. Auto-Noms Automatic Pet Feeding Station

27. Boho Bell Blouse top

28. Ivana top

29. Large Belted Kilt bottom

30. Deco Tank top

31. Day Star 3000 (solar panel+ windmill. took forever to track this one's page down.)

I do have a couple mods that do that, but none that are directed at the glassblowing station. It does appear that it might be a mod issue, or possibly some other piece of CC, so I've decided to reinstall my stuff in small groupings, then testing ingame. That way, I should be able to narrow it down. I just hope it's not something I use heavily. I am VERY grateful for your help so far, as it's helped me get actual results, which is more than I had before.