I don't know what I'm doing wrong but ATT is duplicating all items in Tooltips. I've tested to see if was another addon by disabling Tooltip Integration but when I did that all of them disappeared meaning it's indeed ATT only.

https://ibb.co/K94YhLZ

This is known and is due to the item being a 'cost' and a 'crafting reagent' once you've unlocked/scanned the profession/recipes. I've been trying to think of an alternate way to list content such that they would merge together. Perhaps a different icon without the 'Currency for' grouping... not entirely sure yet and that's why they still duplicate once you've learned/scanned the respective recipes.

I thought was me that checked something that it shouldn't be checked. Thanks for the reply and since you are aware and it's a know issue you can close this :-)

This was fixed in 3fa936d