Itgenscr563 Unsupport OAuth flow 'client_credentials_encoded'

Attempting to connect Power BI to Roller. During Power BI Get Data config, I get the following error from Power BI:

Details: "Microsoft.Mashup.Engine1.Library.Resources.HttpResource: Request failed:
OData Version: 3 and 4 / 3 / 4,
Error: The remote server returned an error:
(500) Internal Server Error.
(rlr: Unsupported OAuth flow ‘client_credentials_encoded’. (itgenscr563, 5b9dd26b-f1be-4148-b260-a0ae8ca9de4c))

Thank you for the report.

The best way to report issues is to take the request ID and error message from Invantive Bridge Online Monitoring (see More insight with new Bridge Online Monitoring), but this suffices.

In this situation an unexpected error occurs. An analyst has been assigned to resolve the issue. It is expected that a status update will take place today or ultimately tomorrow as a reply to this topic.