Modifying TMPro Text Through Code Does Not Apply Unicode Fallback

I spent an evening creating an emoji setup but when I finished I noticed that if in my game's chat messages players used an emoji's name such as :thinking_face: it would grab the correct unicode value from my dictionary but just end up writing \U0001f914 into chat instead of replacing it with the emoji in the sprite sheet.

If I click pause while the chat message is up and I click anything in the inspector for the TextMeshProUGUI object, it immediately replaces the unicode value with the...

Modifying TMPro Text Through Code Does Not Apply Unicode Fallback