Wasteland 2 Director's Cut doesn't appear in My Games

I have both Wasteland 2 and Wasteland 2: Director's Cut. They are separate games with their own achievement lists (although identical to each other).

Espio Idsavant's achievements in Wasteland 2

Espio Idsavant's achievements in Wasteland 2: Director's Cut

Wasteland 2: DC does not appear in my overall list of games, just Wasteland 2 does
Espio Idsavant's Games

Also if I go to My Achievements, no achievements for Wasteland 2: DC are listed, even if the game is selected in the Game filter box.

I've randomly checked a few people who are listed as having the DC version, and it doesn't appear on their game list either.