Just want to ask

Has Citra updated that makes champion battle didn’t freeze?

If it’s not, then you actually can use 6 pokemon by having 5 nicknamed and 1 either nicknamed or not pokemon.
It didn’t freeze for me(Although it’s the first champion battle and not title defense but… logically it should work)
I’m completely unaware of this champion battle bug, but when I tried full 6 no nicknamed pokemon, it froze(Few days ago, that happened)

5 Pokemons should work
worked for me

The number of Pokemon no longer matters, it won’t crash with 6 anymore.