My Pokemon, Roopushin, the Third Stage Fighting Type that evolved by trading knows a move known as 'Little by Little'
However, during battle, the move Little by Little does not show up and where there is supposed to be text, it is blank.
All it says is Normal PP 20/20 on the bottom part, where in the top, it is supposed to list the move.
When examining him outside of battle, it shows the move but not during battle.