On August 14, all hosted service subgraphs will experience 30-60 minutes of downtime, during database maintenance set to begin between 07:00 and 13:00 UTC.

See the status here.

During this downtime, most vesting balances won't be showing correctly. In case you want to claim certain tokens, you can interact with the claim method directly with the contract using the blockexplorer (Etherscan, Arbiscan, Polygonscan, Bscscan, etc.)