We have an app, deployed to more than milion users. Some of them report that they don't see chinese or russian keyboard when they try to select a language to type (but they do see other languages). They say it happens only on our app. Since I'm not familiar with an API to set what languages the user see in his keyboard, I really don't know what to do here. The issue is not reproduced on our devices..
Some notes: 1. The language is on the languages list on the user settings. 2. The users say it happens only on our app. 3. It happens to a small friction of users (not all of them). 4) It's being solved after reinstall the app.
Any direction?