When You Open Chat Settings Minecraft Crashes I Just Did Find This Out To See If There Was Something There New In 17w16a And My MC Just Crashed
Linked issues
Comments 2
Confirmed : Here is a crash log.
(I think it has something to do with the TTS, which
coincide with what Tóth Gergő commented)
This happens to me as well. Also ctrl + b won't toggle the narrator.