Like I mentioned here the Smileys are now black and white. At least :smile: looks like this: 
Note that it’s coloured in the preview.
Testing a few others: 
These tests work… 
(<-- that :) does not work too BTW.)
Test:
It’s also interesting that the “correct” smiley shows up onme second after you publish or edit your post, but it’s replaced by the colourless one…
After a bit of investigation, it appears to be a bug in Discourse. I’ve brought it up with the team.
Testing 
out
@eviltrout
Nice name. Sound evil… and fishy… 
But seriously how was you able to edit my first post? (click on the orange pen to see it)
Another live test:
:smile:
:) 
What’s in the preview:
Say cheese
Looks like the issue has been raised to the devs. Probably time to close this thread.
And here’s the url: https://cdn.discourse.org/letsencrypt/uploads/feverbee/_emoji/smile.png?v=0
Try testing it out at other businessy sites?
I’m one of the co-founders of Discourse and we host this site so I have admin access
good to know
Indeed very good to know. 
Especially as there is nothing in/aside your avatar/profile indicating that you have admin access.
It’s going to be stranger: (:wink)
Rectangle… ough… no.
This time it’s https://cdn.discourse.org/letsencrypt/uploads/roblox/_emoji/wink.png?v=0.
That’s also the case for all Regulars who didn’t set their role as title. Nobody really knows why somebody can edit topic titles then.
Well… yes. This can be confusing.
Edit: Can this be reopend? Because the topics created at the time the error happens still show the old smiley…
Like this one: IP ratelimit and privatekey problem in beta
Ok, this is now fixed Thanks for reporting that issue @rugk