Export report in Power Automate: "PowerBINotAuthorizedException"

I started seeing the same thing this past Friday.  We confirmed that the user account that is doing the export is a member of the security group that allows for exporting of images in Power BI.  Nothing else has changed in our workspace or dataset permissions.  The interesting/odd part is that if we give that account admin rights to the workspace where that dataset is published, it can export images using that Power Automate action.  If we drop the rights back down to Contributor (the role that account has always had), the problem returns.  

I'm wondering if Microsoft changed something about how the permissions work with this policy?