"caller %1 cannot access Stage owned by %2"

[Paianni]

I am trying to replicate a video render (https://www.youtube.com/watch?v=JSUBuVdkskA) from its source flash file (http://orig14.deviantart.net/c8d1/f/2013/307/5/4/we_re_going_for_a_ride_by_greentl-d6svgai.swf). The final product will be a video file with a far higher resolution than the original 720p render.

The problem is that the player only tracks the full static stage, and not the 'moving' visible area as shown on the YouTube clip. I got similar results in the Gnash player, except that player showed the static stage with 'visible area' boundaries inside it.

I also got the error as shown in the title (security sandbox violation), which might be relevant.