UBB.threads PHP Forum Software Community Forums UBB.threads Version 7/8 Support Changing Categories

I've completed an import from 6.5.5 and am now reorganizing the forums. One of the changes is to rename some categories and to add some new ones. But if I go to change the category for a forum the drop down list is the old forum. I'm obviously missing something. But what?

Chuck

It will catch up with its self

Ive noticed this too, but just submit again
with out any changes and it will come good