Looking at the logs, it says “local shadowed so ignored,” so directly modifying the relevant configuration in app.yml will fail.
Hi there, could you share a screenshot/copy-paste of this error?
If you’re referring to ‘language modification’, is it Content Localization - Manual and Automatic with Discourse AI?
Does this help you? 'Default Locale' stopped working (again) - #11 by gerhard
It seems to be about the same error. Is DISCOURSE_DEFAULT_LOCALE commented out in your app.yml?