Working with a DEMO VM, I ran into a scenario where Microsoft SQL Server Reporting Services (SSRS) reports were showing label IDs instead of text. Since everything was on the same box I opened Event Viewer and looked at Windows Logs > Application to see any related errors.
Using the Cloud-hosted environment tool in Lifecycle Services, you can deploy a High Availability environment. When you deploy a High Availability environment, two BI servers are deployed by default. Each BI server has SQL Server Reporting Services (SSRS) and SQL Server Analysis Services (SSAS) configured as a unique local instance.