XF 1.4 Problem with threads


Well-known member
We migrated from vB a year and a half ago. One of the issues we keep coming across is threads like this:

My initial thought was that these were "ghost" threads, the result of merged threads pre-migration where the content was moved over to another thread, leaving a "shell" of the old thread the content was merged from. It's the only thing that makes a little bit of sense. I'm starting to wonder if that theory is correct though.

Any ideas?