Cannot input Japanese characters in editor with Google IME on macOS

[koreyou]

Environment

• TeXstudio: TeXstudio 4.3.0 (git 4.3.0)
• Qt: Using Qt Version 6.3.1, compiled with Qt 6.3.1 R
• OS: macOS 12.5.1
• TeX distribution: TexLive (mactex on brew)

Actual behavior

I can type normally when I am not using IME (i.e., direct input in English), but, when I turn Google Japanese Input (2.25.4030.1) on, it ignores most of the input (I found that it accepts あ (a) and upper case alphabet input). I have no problem (a) using Google Japanese Input on other editors, and (b) using macOS' default IME on TexStudio.

https://user-images.githubusercontent.com/5196226/186068117-443a9cc5-09e7-4c25-9650-ffa149308989.mp4

How to reproduce

Just clean install IME and texstudio with brew.

brew install --cask google-japanese-ime
brew install mactex
brew install --cask texstudio

I am using default settings for TexStudio and Google Japanese Input.

[ddd3h]

This phenomenon occurs in Version 4 and above. Therefore, I recommend that you downgrade to version 3.1.2, etc. I hope this bug will be fixed soon.