Sync to a new device renames groups on my DTPO database

Didn’t notice this until this morning, but I synched one of my DTPO databases to my new iPhone 5s (via DTTG, of course). The sync was interrupted twice by incoming phone calls.

This morning, about a quarter of my group names have been renamed to %placeholder%. Needless to say, I had a panic attack, because it seems that all sub-groups under these groups have been renamed to %placeholder%!

Most important question from me is: how do I restore my group and sub-group names? My last backup is about two days old, but I’d hate to have to tediously compare my backup copy with the current DB to manually rename the groups.

Secondly (and more important for Devon Technologies), what caused this?

Thank you in advance for aquick response!