BUG - SQL refreshes, scheduled and direct query are failing

[Anonymous]

Just out of the bug we had in the October version (which was rectified with this release: October 2020 update release), we are on to another issue that has cropped up yesterday! :sigh:

The SQL connected reports aren't connecting to source anymore! I am the db/server owner and none of credentials have changed.

Direct query:

Import mode: [truncated] server and db name for confidentiality

SessionID: ccd235e9-a8fd-4d65-81b3-5df6baae7c86
[0] -1055784932: The credentials provided for the SQL source are invalid. (Source at [truncated];[truncated].). The exception was raised by the IDbCommand interface.
[1] -1055784932: The command has been canceled.. The exception was raised by the IDbCommand interface.

Test Connection shows success under Data sources.

Would appreciate quick support from MS on this.