I Can’t Find My Players, Lucio, Gullit, Di Nitale???

I can’t find or use my players in my club for training like Gullit, Lucio, Di Nitale, they aren’t showing up with my other players on the training menu. 

Also I can’t sell them on the transfer market either? I can “purchase” but the “sell” option is grey, why?

I can’t sell my TRADE-ABLE Gullit, Lucio, or Di Nitale that I bought with my own coins? I can’t use any of them in training and I can’t use any of them for player exchanges!? It feels pointless and unfair that they just sit in my club? 

I’ve tried unlocking them, locking them, putting them on my bench, putting them in reserves and nothing

It doesn’t matter if the player I’m trying to train is trade-able or not I’m getting the same players in the training screen 

please someone let me know what’s going on….