A few questions...
1) Has it ever worked correctly (ie. even before you started modding)?
2) Which version of uBB threads are you using?
3) Could you list the mods you installed?
I'm on 6.3.2 so may not be able to help as much as someone with the same one as you.
If worst comes to worst, you can always start fresh and start remodding all over again. But this time test after each one to find out the culprit.