AIR for desktop iOS not loading external video

The problem I am having is that the AIR app I created for desktop WILL NOT LOAD an external video (.mp4) even though it works fine when the .swf is opened separately on its own.

I am running this in a MacBook Pro iOS 10 with FlashPlayer/AIR v26

Here is the code loading the video:

import fl.video.*;

video_player.fullScreenTakeOver = false;

video_player.play("SOU_LobbyAnim_01.mp4");