In Data Warehouse the variable names should be next to each breakdown item. Without it you can end up with something that looks like this:
In all other dropdowns you get the actual variable name next to it, like this:
This same problem exists in Excel Client as well when looking at multiple variables with the same classification names. For example, if you have a prop and an eVar that have the same classifications, it will display the same name in Excel Client when choosing a report.