Report does not refresh on schedule
Hello, I have configured an on-prem report server with the Oct 2020 release. I have a report developed using the same release that pulls data from a sharepoint list, approx 30 rows total, no calculations or metrics. Just a simple dump of three attributes to a table. The report refreshes in Desktop without issue as well as within the portal. However, if I attempt to schedule it or refresh on demand in the scheduling interface it does not refresh. The message in the ...\Microsoft Power BI Report Server\PBIRS\LogFiles\RSPowerBI log file is: 2020-11-18 08:00:07.7366|ERROR|61|Error Processing Data Model Refresh: SessionId: 66bda523-cb7a-4055-adc0-c0059efeccfa, Status: Error Failed to refresh the model, Exception Microsoft.AnalysisServices.OperationException: Failed to save modifications to the server. Error returned: 'COM error: System.Core, Sequence contains no elements. The current operation was cancelled because another operation in the transaction failed. I am using a service account to connect to sharepoint and the rights have been verified. As I mentioned it does refresh successfully using the service account outside of the scheduling interface. Any suggestions would be appreciated. Thank you. Jeff