XF 2.1 Censoring not working


I upgraded xenforo 1.5 to 2.1 and now the censoring completely stopped working. all the bad words we were blocking on 1.5 are now showing up on the site. the configured words are still showing in Options->Censoring but they are not being obeyed.

I tried disabling all the add ons 1 by 1 and none of them are causing it.

i also tried changing back to Default theme that is not causing it either.