[@morgan-wick Member 15 years, 5 months ago]

It sounds like the first post isn’t being recognized as the start of the thread for some reason. Which might be because “the first posts weren’t cached properly” – ie, they were cached as ordinary posts, not as thread-starting posts.

Presumably the importer is finding all the requisite information to create the thread, but it isn’t finding anything that would be content for the thread-starting post, so it creates the thread-starting post as blank.

Did that make sense?