About language settings in ELM
In order to return the environment that was installed in English + Japanese to an English-only environment, I did an update installation with the installer excluding Japanese. Although it was written in English, only one attribute of the owner remained unassigned in Japanese. Even changing the locale of the browser to English did not solve the problem. If anyone knows how to check or fix this issue, please let me know.
2 answers
Form your description, I am unable to tell what is in English and what is in Japanese.
I install the clients, servers and templates in English only.
This is my experience, i.e. not an authoritative description of what should happen: In my test environments I install ELM with all languages on usually Windows set to US English but with a UK keyboard, and then the user's browser language setting seems to control where text is dynamically displayed in local language. However this doesn't change text which is part of the project definition; this is determined by the user's browser language setting when the project is created and then can't be changed.