Here is a list of issues related to GO Battle League that are currently being investigated by our engineering team. This list will be updated regularly, and issues will be added and removed as they are discovered and resolved. Please note that this is not a comprehensive list of all issues we are aware of or working to fix. You can find the list of known issues unrelated to GO Battle League here.
To report a bug that isn’t listed here, or get one on one support, please submit a ticket in-app under the Settings menu, or see our article on how to best contact us for different issues.
Last updated: December 8, 2023
Trainers do not receive Palmer Jacket as a reward for achieving Ace Rank.
Issue description: 
When a Trainer achieves Ace Rank in GO Battle League, they receive Palmer Gloves instead of Palmer Jacket.
Issue status: 
Resolved. Trainers at rank Ace Rank and above will receive the Palmer Jacket upon completing their next GO Battle League set.
Sometimes the game may be less responsive as the final Pokémon faints.
Issue description: The final action of a battle can experience delays in certain situations.
Issue status: Investigating
The eligibility list for the Evolution Cup was incorrect.
Issue description: Some Pokémon that are not on the eligibility list for the Evolution Cup were able to be selected and enter into battle and others that are eligible were not able to enter into battle.
Issue status: Resolved
Trainers are asked to walk to unlock a GO Battle League battle.
Issue description:
Trainers attempting to join a GO Battle League battle see a message asking them to walk to unlock their next matches. This is purely a visual bug, tapping “BATTLE” will allow you to join the match without walking.
Issues status:
Sometimes Porygon appears in the sky on the Map View after a battle crashes.
Issue description: If a battle crashes, a pair of Porygon appear in the sky on the Map View. Trainers are unable to interact with them. This is a visual bug that does not affect gameplay and restarting the app will fix the issue.
Issues status: Resolved

Trainers are unable to leave the friend battle rematch screen.
Issue description: After battling a friend, Trainers are unable to leave the rematch screen and must restart Pokémon GO to continue playing.
Issues status: Resolved in 249.

Fast Attacks sometimes prevent Charge Attacks from working.
Issue description: If a Trainer tries to use a Charge Attack at the same time as an opponent’s Fast Attack that will cause the currently battling Pokémon to faint, the Charge Attack may not work.
Issue status: Investigating.

Fast Attacks that simultaneously cause both Pokémon to faint may not result in a tie.
Issue description: Fast attacks that will cause the match to result in a tie (both Pokémon fainting) will often not result in a tie.
Issue status: Investigating.

Force Swaps sometimes cause the opposing Trainer to miss a turn.
Issue description: When a Trainer is forced to switch Pokémon due a fainted Pokémon, their opponent may experience a short delay.
Issue status: In progress.

Trainers sometimes experience an error in the matchmaking process but still begin the battle.
Issue description: When a Trainer experiences an error during the matchmaking process, the match starts anyway.
Issue status: Investigating.

Trainers may briefly be taken to the battle screen during a canceled match.
Issue description: Sometimes when a match is canceled, Trainers will momentarily see their opponent in the Arena before they exit the Battle. This does not affect Trainer ratings and is purely a visual lag.
Issue status: Investigating.
Some Trainers see incorrect or missing visuals when battling.
Issue description: Some Trainers battling may see incorrect or missing visuals if their device has not yet downloaded assets after a new update.
Issue status: Resolved

Protect Shield Display Inaccuracy
Issue description: Protect Shield animation will still play even if a Protect Shield fails.
Issue status: Mitigated in 0.243.

Protect Shield Failure
Issue description: Protect shields may sometimes not work.
Issue status: Mitigated in 0.243.  Further improvements under investigation.