Found one more UBB.classic import error.
However, I have a problem with this "code" even in classic, as I am not able to edit the post. Could it be the reason to why it is not imported correctly?

Attachment 1 is how it looks like in UBB.classic.
Attachment 2 is how it looks like in UBB.threads beta 4.
I don't know how this looked like in any previous beta.

Attachment 3 shows the complete post in classic (I removed some text).
Attachment 4 show how it looks like when I try to edit it in UBB.classic.

The only thing that is not correctly imported to threads is the "code".

I PM'ed the classic code to you, Rick.

This should be fixed for beta 5. In the classic import script the regex was a bit off. If anyone doesn't want to wait until beta 5 is released you can fix the importer by changing lines 2408 and 2409 of the classic_import.php script. Both of these lines have a spot in them that says:

\\2

These need to be changed to

\\4