Chatot Boomburst Crash Egglocke

Trying to hatch Chatot from an egglocke egg, it will hatch but as soon as the "added to the pokedex" screen disappears the game crashes. If Chatot tries to learn a new move you can see the moveset, where there should be boomburst there is an 80 power physical move with no name or type and the description for x-scissor