Howdy! I viewed my deck with a hand selected and caught this bug. It was remedied by restarting the game but wanted to let folks know in case it was run into by others.
#Play/Discard Buttons missing after viewing deck
steel gyro
pulsar egret
I'm assuming you mean you weren't able to hide the deck info? In which case it has been reported before. It's caused by a peripheral device like a controller being stuck on a certain input.