@Cocarne, I am an IT guy and I know my way around computers. Tech support advice like "have you turned it on and off?" does not and will not cut it.

Case in point:
I bought myself the Divinity: Original Sin 2 - Divine Ascension edition and when the mods rolled out I got squat shit.
I bought my girl Divinity: Original Sin 2 basic version and in her Library > Tools area there is a The Divinity 2 Engine entry, but no DLC tab in the game's Proprieties window.

The game's on both PC's have been reinstalled and integrity verified, Steam has been restarted and killed via Task Manager, a computer restart has been performed and none of this worked, which means either Steam is stupid OR Larian took the cart into the tree with this one. Thus I am upset and I requested a refund.