Pokémon Masters EX version 2.64.0 is now available on iOS and Android, bringing a fix for the issue affecting weather, fields and zones. The problem caused certain battle effects to behave incorrectly, which could impact strategies and team setups. With the update live, those mechanics should now function as intended, restoring consistency to battles. While the patch does not add major new content, it is an important stability update for competitive and casual players alike, ensuring core systems work properly as players continue tackling events and daily content.
Source: Official Pokémon Masters EX site
Pokémon Blog 