I have built a report that accesses another report's dataset residing in another workspace. As I am adding the additional SharePoint group (team) to the referenced dataset's direct access permissions for read-only access, members of that group still report they are not able to view the new report (in their own workspace) due to not having permission to the dataset. If I add these users individually; however, they can view the report.
I am not sure if there is some sync not being performed or if this is another king of bug. Thanks!