Sepolia Builder/Relay

[rileyg98]

Hi, it appears the Flashbots Sepolia builder submission endpoint is returning 500 errors for eth_callBundle and eth_sendBundle. This was originally reported October 8 in the Discord by another user and re-reported in November by myself. Clearly, this hasn't been fixed. While I understand Sepolia is low-priority, projects are currently unable to proactively move to the supported testnet (as Goerli will be sunset in a few months).

As this is the most relevant project, I'm submitting this issue here so there's visibility.