UBB.threads PHP Forum Software Community Forums UBB.threads Installation and Upgrade Support Blank screen after upg from 7.1 to 7.2.2

In case it helps the diagnosis, if I go to edit a "pre-upgrade" board in Control Panel, then change the "forum=" in the URL to the ID of the forum that I created but can't see anywhere, I can actually access it to edit it. It still doesn't appear on any of the list in control panel though (same for the category that I created since the upgrade).

- Paul