I am trying to call "get_erc721_token_transfer_events_by_address" on a rather large set of wallet addresses (roughly 1000) and iterating over a for loop to do so - I thought it might be an issue with the calls per second cap so I set the sleep time to .22 seconds then to 1 second after the calls - without any luck.

Any ideas as to why this is happening? I'm guessing this is on Etherscan's side but I'm hoping someone might have some insight?