For some reason the achievements in game aren't showing up in steam. Does anyone know why, or have any ideas?

I bought the DLC after beating the game but I don't see an option for it in my menu, am I missing something?

bro ive been playing for several hours trying to get zens ending after completing phoenixs/joyces-- then it occurred to me that zen probably isn't even romanceable since you can't change his gender like the others im kind of a dumbass wtf

...after just 45 minutes because I didn't care to write down Teal's username. Why give a default name and then don't repeat that later in the game? And so my happiness drops to zero and I may not come again.

So I've gotten all of the 10 achivements but can't get the completionist one? Did I miss something or is it a glitch?