Drill through to landing page from ARCS mapping advice needed

Summary:

How should dimensions be mapped when trying to implement drill through to Data Integration Landing Page for ARCS?

Content (please ensure you mask any confidential information):

We are in the process of building a drill through to the landing page of Data Integration from ARCS. The drill through itself is working, but we're seeing some strange results and we're thinking it's down to the mapping of the segments/dimensions but we can't really tell from the documentation what exactly is required here. When drilling on a balance, we get a screen like the following, where the data shown is correct but it's showing a combination of Source and Target columns, and then for some reason two Source- columns from old periods. Any help on the below and