The Pokémon Company and Nintendo have announced that a new patch will be rolled out later this month for Pokémon Ultra Sun and Ultra Moon on Nintendo 3DS. The upcoming patch will aim to rectify the following issues:
- Rare game freezing after picking Litten as your starter Pokémon
- Wide Guard isn’t working properly with certain Z-Moves
- Ion Deluge is not working properly
- Pokémon unexpectedly forget a move after learning a move using Battle Points via Mantine Surf or the Battle Tree.
Source: The Pokémon Company
Pokémon Blog 
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