Cards purchased disappeared?

I have never tried this HUT mode before, so I have no idea what I'm doing. But I created a team with the starter pack, then I played two games. After that I bought a gold pack and got a bunch of good players. When I went to edit my lineup they were not there. I had done the multi-select and then whatever the store players option is. I double checked my coins so I know for sure I didn't sell them.

Can someone please help? BTW. After I couldn't find them editing my roster, I went to create a new line-up from the manage line-up area, and after creating a new one and seeing that they still weren't there, I went back and now my original team is gone...