Okie. Found another thing.
Simple Beam's message isn't displaying the transferred ability.
I herped and didn't get it word for word, but,
"Elgyem used Simple Beam! Yanmega acquired !"
There was no ability listed. :x
Yanmega's old ability was at least overwritten but I couldn't confirm if Elgyem's ability was functional on Yanmega, so I -think- the move is working properly in terms of battle.