Starting 7/11/2023 17:00 CST all reports using dataflows as a datasource are failing to refresh in the service. All give a similar error of "Access token has expired", and I've included one example ...
Since midnight we are also experiencing this issue. A few dataflows and reports connected to them failed with the access token 'pbi.error' not found message.
Furthermore, none of the dataflows can be used in service but they work locally (in the service, when expanding the workspace folder, nothing appears as it is not detecting any available premium workspaces):
To clarify, the issue is in any dataflow or dataset that has a dataflow as a datasource Anonymous