Generic error when creating new data source - MySQL8

I am encountering a generic error message when attempting to create a new data source connection.

Sorry, we encountered an error and were unable to complete your request.

Error ID: 726561be

We are testing this connection with a newly upgraded MySQL8 AWS RDS server. It is using a proxy to prevent the database from being open to the public and has the correct IP addresses allowed through. Is there any way to get more information about this error?

The support request form does not allow me to send a direct request without using GA4 credentials so I am posting it here.