Some bug that won't let me delete or add emotes to my server.

I added a bunch of emotes, under 50, and then I found some more and thought I'd delete the ones i put in and add them all back again. When I clicked on the X to remove them they all came back. I reached the end and they just kept coming. I managed to remove them by removing random emotes from the list (not in order) and it worked somehow, then when I tried to add them back it wouldn't let me.