Page Load - Visual Composer post grid

Hi guys,

Can you tell me why Post Grid element in VC is not loading on a page? We set it to pull Forums from bbpress. It does load/display when we preview the page (which is strange) but it doesn't show up on the live link - you can see the little circles on the bottom trying to load:

We get the following Chrome error: Uncaught Error: Syntax error, unrecognized expression: {"status":"Nothing found"}

We've searched high & low for an answer and can't find.

We checked with the Theme developers and (not surprisingly) say it's not an issue on their end.

Any help would be appreciated! You guys are great!
Thanks much,