We are currently developing a skill that implements the ModeController interface. It is currently in development mode.
The use case is to allow the SetMode as an action in a user-defined routine.
We use the Alexa Smartphone App to set up this routine. This works fine as long as the smartphone is set to English locale, with the Alexa App having an English UI, on iOS as well as on Android. The users can successfully create and use their routines.
However, once we use a smartphone with German locale settings, our ModeController devices are not listed under "Smart Home" in the routine creation flow. They are listed as triggers, and all other Smart Home functionality is available.
As the ModeController should be supported in German, we are wondering what might be the problem. Ideas?