Usercentrics In-App SDK does not display the language icon on the first layer on Mobile, it instead relies on the Language Hierarchy instead.
It is possible to default initialisation to specific language, if the language specified exists, supported, and has been added as a visible language through Account Interface.
Our apps, games and Connected TV implementation documentation can be found here:
If you have any further questions or require further support, please feel free to reach to our support team by opening a ticket:
https://usercentricssupport.zendesk.com/hc/en-us/requests/new?ticket_form_id=10659486950940