1 of 5,188 EIP-1559 with Infura Kovan related to go-ethereum

We have identified an inconsistency with how Infura Kovan endpoints handle EIP-1559 that is causing issues in go-ethereum:

We believe this is on the Infura side. Could someone from the Infura support team please take a look?

We are unable to deploy contracts on Kovan due to this issue.