CarPlay simulator on Xcode 11.3 not working for audio apps

Number:rdar://FB7514196 Date Originated:12/30/2019
Status:open Resolved:
Product:Xcode Product Version:11.3
Classification:Incorrect/Unexpected Behavior Reproducible:Always
CarPlay simulator not functioning on Xcode 11.3, methods from MPPlayableContentDataSource and MPPlayableContentDelegate never fire.

Take an app with complete CarPlay support (entitlements, MPPlayableContentDataSource and MPPlayableContentDelegate conformance...) that is fully functional on the actual device when connected to a car stereo with CarPlay support.

Launch it on the iOS13 simulator.

Select the menu of Simulator app: Hardware > External displays > CarPlay

What did you expect to happen?

A fully functional CarPlay simulator. 
I expect (would like) not to spend days debugging my app inside my car or at a car dealer.

What actually happened?

A window with the CarPlay simulator appears with the title of the app and a spinner

After a while a prompt appears: Unable to connect to "App Name".

A "Try Again" button is also displayed. Clicking on the button doesn't resolve the issue.

Methods from MPPlayableContentDataSource and MPPlayableContentDelegate are never called. (but they are when run on the actual device connected to a CarPlay system).


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