Steps to reproduce the issue
Input some Japanese character.
Expected result
The character will be inputted.
Actual result
It isn’t.
Steps to reproduce the issue
Input some Japanese character.
Expected result
The character will be inputted.
Actual result
It isn’t.
(Copied from MC-303432.) This is because Mojang updated the LWJGL from version 3.3.3 to 3.3.6, but did not update their code to support the new experimental IME support introduced in version 3.3.4. Once this has been fixed, I believe that almost all existing IME-related issues will be resolved.