Hi - I had a user report issues with emojis and it appears many are having the same issue:
"Did anyone manage to discover the "rules" to using emojis ? Sometimes they work, sometimes they send the post to the nether realms. The worst thing is when quoting a post that contains emojis, I have to make sure to go back and remove them all, otherwise I lose the message. Sometimes they work in a new topic, but not always. Otherwise, all bets are off and they create these empty posts that no one can open...
I think they should be disabled completely if they are so unstable that we can never trust them. This is too bad, I feel that a little emoticon once in a while helps to make sure people understand the intended tone, plus it brightens up the place."
I tried replying to a post with a couple emojis and got a "Reply Request error" message in the upper right hand corner. Can anyone help?
Try to fix those errors you have:
After fixing the errors Check your DB charset it should be utf-8 mb4
Solution for changing charset: https://wpforo.com/community/faq/emoji-does-not-work-errors-topic-add-error-and-reply-failed/