The proper people have been notified and the issue has been noted. Thanks for bringing it up. We're trying to pester (within reason) the client app devs to fix channel stuff so that the channel experience is better across the board B)
Yes, the same problem ocurrs when an empty object container is returned. As a workaround you could return an item with no description , or one where the callback sends the user back to the previous menu this will stop the app from failing. You could check for client Is being used as well and display either the message or the menu item