We have 2 major issues with a dataflow that previously was working successfully to pull data from Project Online. Issue 1 - Failed Refresh Last week a DataFlow stopped refreshing with the following error
After some investigation and testing different combinations we found that one of the Merge steps in the dataflow was the culprit. If we removed the step the dataflow would refresh.
When we connect to the dataflow from Power BI any entities that include a Group or Merge steps are not available.