It's been down for about 2 hours for me, I raised a ticket. My site is for people with anxiety disorders +1 for a panic button :p I'm getting messages constantly from people panicking because chat is down.
Sorry for the late response but I managed to fix this for myself by uninstalling Chrome and installing it again. I tried disabling adblock and other browser add ons with no success but a fresh install of Chrome has fixed it for me.
Guess nobody has been able to figure this out? I enabled emotes again and it still happens, going to have to disable them again because it's just impossible to keep having to scroll back up all the time. If anyone figures this out I would appreciate it if you can let me know. Thanks.