Welcome to PokéCommunity! Register now and join one of the best fan communities on the 'net to talk Pokémon and more! We are not affiliated with The Pokémon Company or Nintendo.
I'm not sure if the TM disappearing glitch has been fully resolved. I recently lost more than half of my TMs and currently have no way to get them all back since I am only half way into the game. Maybe you should recheck to see if the glitch was actually resolved thx :)