Get-PowerBIDataset fails when using a service principal

[KoenVerbeeck]

According to the doc, Get-PowerBIDataset should return all datasets the user has access to. "Returns a list of all Power BI datasets a user has access to." However, when using a service principal you just get an error "forbidden". The service principal was added as an admin to a workspace. I expected all data sets from that workspace to be returned. If you specify a workspace ID, the command works.