Discerning Taste

Here comes the most niche issue of all time:

This item is vendorable. I could not for the life of me figure out why I didn't get my 4th guest after completing the sanctum upgrade. It turns out that I accidentally sold this quest item to a vendor without noticing, I had to use the Blizzard Support recover lost item function to get it back.

clicked it, show completed when i type the script, but i still have only 3 guests...