Expo-calender not working on production build (IOS)

Question

I use the following code to get all calenders on the device:

const calendars = await Calendar.getCalendarsAsync(
      Calendar.EntityTypes.EVENT
);

On the IOS-Simulator, it returns the list of all device calenders as expected. Using it in production on IOS, the following is returned.

expo-calender-prod-screenshot

Why are those two arrays of calenders different even if the same code is used?

I try to get all device calenders, it does not return all device calenders in production on IOS

"expo": "~49.0.8", "expo-calendar": "^11.0.1",