Move Relearner glitch
Miscellaneous glitches of Pokémon Sword and Shield
Disappearing cursor glitch | Early Bike glitch | False trade completed glitch | Move Relearner glitch | Static encounter shiny lock glitch | Sucker Punch glitch | Shiny variation glitch
In Pokémon Sword and Shield, if the player talks to the Move Relearner and brings up the list of moves a Pokémon used to know, the game will crash if there are over 67 of them.
Attribution
First documented by SciresM[1].