And they attached the following screenshot, which defnitely has information in those columns.
Thing is, there has never been information in any of my documents for those columns, and the Adobe Help for Cross-references has a screenshot from the structured interface which also has no information in the equivalent Elements columns.
I am now trying to find out if there's a setting or maybe something in how the xrefs are set up to begin with that would affect this.
Good news is that I'm not the only person who doesn't see anything in those columns. Matt Sullivan and I had a brief email exchange and he doesn't see them either. That made me feel better. I hate being an edge case!