Hello. I ultimately did not resolve this issue, but it has had little impact.
The most accurate description of the problem should be: When I create a new category, the default language of the “About this category” post automatically generated by the system is recognized as “en”. Although the text content is indeed Simplified Chinese, when I open the post, it is recognized as English and needs to be manually changed.
I’m not sure if this is related to my app.yml file settings?