I'm moving a topic (not a reply) from the post edit screen.
On the topic starter post, I click EDIT, then MOVE/MERGE THIS POST AND ANY REPLIES.
Then I select the radio button "Move post and replies to (drop-down list). I select a different forum from the list.
Then I click SUBMIT.
The topic, after the move to the new forum, has a count of zero.
I am using UBBThreads v 7.7.1.