Access Token Validation Failure - Invalid Audience error with SharePointOnlineConnector

Hello!

I've been struggling with the SharePointOnlineConnector transformer for a couple days now. I have set up a web service following the official tutorial (first I've set up one for Sharepoint List, then an identical one from the Sharepoint Online template as well).

When using a Sharepoint List Reader I can successfully access the lists, but I can't access anything from the SharePoint Online Connector. I get the following error: "SharepointOnlineConnector: Error making request to https://graph.microsoft.com/v1.0/sites?$select=id,webUrl,name&search=: Access token validation failure. Invalid audience."

The app I've set up in azure has the following permissions (might be overkill, but I'm just testing for now):

Microsoft Graph (5)

Sites.Manage.All

Sites.Read.All

Sites.ReadWrite.All

User.Read

User.ReadWrite

SharePoint (7)

AllSites.Manage

AllSites.Read

AllSites.Write

MyFiles.Read

MyFiles.Write

Project.Read

Project.Write

What am I missing here?

Thanks in advance!