Display language does not follow settings

Hi there. I have set the language list in settings in the following order:

  • British English
  • American English
  • Traditional Chinese.

All the text in the system and software are shown in English properly when Traditioanl Chinese is not on the list. But after adding it, some text in the system and software are shown in Chinese (e.g. some text in volume control, pamac, and ibus).

I’m not sure if I have missed any settings or configurations. Anybody could help? Thanks a lot!