Mendix Native Default Language

Hello, The default language of my 9.18.3 app is set to Japanese. I am running the app in an emulator in the dev debug profile with the language of the phone set to Afrikaans, which my app does not support. Why is the app in English rather than Japanese for an anonymous user on that phone and why is that anonymous user automatically associated to the English language entity?  Thanks
1 answers

The secondary language on the phone was English and removing it entirely made the language default to Japanese. Makes a considerable amount of sense.