Devs blocked features when using certain other twitch addons.

Edit: Clarification; BTTV no longer shows emotes enabled on their side on twitch if you use 7tv in tandem with this addon. Good thing is, Frankerfacez still works regardless after enabling emotes from both addons to be shown; which means that it is almost certainly this addon that disables the emotes and not another one. So it would be wise to just install FFZ instead.