However, I'm facing a problem with importing threads.
During the import, I see that all the forums are created. For example, I have a forum called 'Feature requests'. In the forum list it shows with 457 discussions, and 5009 messages.
But when I click it, the forum is empty.
The weirdest part of all this, is that *some* of the forums are imported correctly, and some aren't.
I tried 2 different databases, multiple times, but I keep having the same issue.. And yes I rebuild the whole thing.

And after the rebuild, the forum listing is telling me that there are 0 discussions and 0 messages...
Any clue?
[EDIT]
I think I'm on to something. It looks like the importer is connecting threads to categories.
I have a node_id 14 named 'Administration', which is a category and not a forum.
I have a thread_id 2030, which is connected to node_id 14.
If I open a post directly (with a direct link (XF/posts/17188/)) it gives me an error: 'The requested forum could not be found'.