You should be able to also see your own chat because you'd be logged in and able to type. If not maybe it was a relay issue or maybe you need to reload/clear cache because I deployed a new version yesterday.
Discussion
I’ll clear my cache and try again. I actually love that you have to be logged in. What a feature!
Okay. Let me know.
Cleared my cache. Typed some lines into the chat, but they just don’t show up? 🤔 someone else need to be in the room for this? 
Just typed hi back - can you see it?
It sounds like you're denying the event / not signing the event.