Hi, I am managing a workspace in Power BI which has a number of dataflows. These dataflows have been working as expected until Sunday October 24th when all scheduled refreshes failed after 24 hours ...
This happens with all data sources: I mostly use Azure SQL server, but the same thing happens with a local Excel file as well. Dataflow refresh returns an error "Cannot acquire lock for model" and modifying an existing dataflow and trying to save changes returns “can’t save dataflow: unknown exception”.