Games I want stack is gone

Why are the games I had there gone? I was using that to keep track of upcoming games and updates for already released games.

Now I have no idea which games I was planning to get.

Stacks haven't worked correctly since they implemented them and "fixed" them.

@neatfeatguy: I figured out that you can't have spaces in between the words you use as a stack title. That is why I have duplicates. I was trying different things. And that is the only thing that works for naming stacks.