When trying to save emojis in a meeting topic title, it actually saves with a hyphen character ("-") in its place. The only emoji I have tested that will persist in the title is: 
.
I have tried this by updating the meeting topic via API, Zoom web client, and Zoom (MacOS) native app and observing consistent behavior.
Is this a bug or will there be future support for other emojis to be saved in the topic title? Thank you kindly for your consideration.