On the 1st page the staff labels are correct wrt the condensing. On subsequent pages one of the horn staff labels with an abbreviated instrument name duplicates the name while the other horn staff (and all other staves) are as expected. Any ideas?
I imagine the issue is that you have somehow edited one of the two short instrument names for either Horn 1 or Horn 2. Open the Edit Instrument Names dialog and click Reset to Factory for both instruments. That should take care of it.
That was it. Thanks!