Since we upgraded from Dynamics 365 8.2 to 9.0 - we noticed that we get an error when we go to look at the Document Management related records area of any entity where we had SharePoint Integration (Document Management) setup.
The error is just: "Unexpected Error" An error has occurred. Try this action again. If the problem continues, check the Microsoft Dynamics 365 Community for solutions or contact your organization's Microsoft Dynamics 365 Administrator.