It took me a lot of time to find which mods make the Facebook App has error so I want to share those here for anyone who experiences errors can save time to fix.

1. Chiplove.9xpro - View more thread same category 1.2.2 full
This Mod causes the first post of thread does not show.
2. Advanced @User Tagging v2 (vB4)
This makes content of posts contain user tag does not show on FB APP.

Anyone knows other conflicts please share to save time when deploy FB APP.