A streamer that I watch pretty often is experiencing the issue mentioned here: https://discord.com/channels/817075418054000661/1224337623724855316
But in order to explain it in my own words, she said that every time she's about to stream, she goes on 7TV to check her emotes in the emote sets and some of them show as invalid, and many other emotes keep changing names. She said she doesn't know what to do, so I'm making this post to see if there's any resolution to this.
The changes happen on their own so she keeps removing and re-adding emotes with the correct names, but as you understand it's exhausting and shouldn't be necessary.
Update: As I'm checking the 7TV emote set, even a deleted emote (usually *UnknownEmote) has been renamed by this bug.
(collage of screenshots of some emotes that swapped that I made in MS Paint)