I have a Galaxy Tab S7 and for a trip to Spain I downloaded some stuff to watch on the flight. When I got on the plane none of the stuff downloaded on Disney+ would play. Maybe an issue with downloading to the SD card? I don’t know, but regardless Disney offers SD card as a download destination so they should make sure it is working.
So now I’m here pirating a show that should be available to me through a service I pay for. Gabe was right, piracy is a service problem.
Their support site literally says “when you don’t have an internet connection” so if it’s working the way you describe then it’s not working as designed.