So your importing from phpBB v1?
Indeed our importers only support phpBB 3.x for bbPress 2.5.x and phpBB v3.1 for bbPress 2.6
Did you write your own phpBB v1 importer or copy and modify the one that is included with bbPress?
There are also some fixes and improvements in our repair tools coming for bbPress 2.6 that hopefully will be released in the next couple of weeks.
I’m happy to take a look at the importer if you made one and/or some data examples, you can post code examples on GitHub here https://gist.github.com/ntwb
(If you added the raw MySQL data from a single forum, a topic of that forum, and a reply of that topic I could give you some tips on what the main issues are that your most likely having)
