Issue: Forum header titles change after NuWiki import

Related: when I try to edit some forum headers, I am asked to enter a title, because there is no title. The url is similar to this:
https://www.my-forum.com/forum/newth...forumheader=33

I'm not sure what title to add(if I should do so), because the original title is already in use.
The forum header article is not in the forum header forum anymore. So I it seems that the content does not come from a forum header thread.

The url structure above seems to indicate that a new thread will need to be posted. So what happened to the old one?

Also on the Edit tab? In rare cases I have seen the article content different from the same article's source. No changes are actually made to headers during the import, the importer parses the titles to link them to their forums, but this simply adds the ID to a new table.

There are no tabs in this screen.

BTW: I was just updating my post above. Please check if you have read the update.

There is no article, so there are no tabs. The screen I am getting is the 'Post New Article' screen.

If the article is gone from the forum list then it's possible someone tried to undo the first edit ever. This deletes the article... It doesn't complain when you create the "missing" forum header, so you should be able to do this. Also, you can name a forum header whatever you want. VaultWiki doesn't use the title to link the header to the forum, but lets you select the forum from a drop-down.

EDIT: But did you mean that the target forum was missing from the drop-down?

Fixed the drop-down not automatically selecting the forum if we came from an edit link in the target-forum's context.

Im certain no one has undone the first ever edit. It had 20 edits and no one but me had the permission to undo edits, until a after this was discovered.
A lot of forum header threads no longer exist. Their thread title got replaced by other forum headers.

For example: Header-23 used to be the forum header thread for forumid 33. But now its the forum header thread for forumID 23.
So it seems that the Forum Header threads have been renamed to a more logical name. The forumID matches the forum header number now.

So in instances where forum headers used to have a number that matches the forumID of another forum, these forum header threads are gone.

Does that make sense?

No, I didn't check the drop down.

Okay, fixed the importer to get the correct forum ID from the database.

Will running the new version of the importer resolve the issue for my live board?

If you wanted to do this without restoring any backup, you would have to use the following query before re-importing or nothing will happen:
Please note that this will dissociate all headers, even ones that you created after importing. For newer ones, you would have to reselect the target forum using each header's Apply tab.