Loading Portrait Scene from Landscape crashes the app

Hi,

I have a scene that allows the orientation of the screen to auto-rotate and have other scenes that are set to be Portrait only. When I try to load any of the Portrait scenes from a Landscape position at the Auto-rotate scene, the app stopped responding and froze after loaded up the scene and no errors were shown in the log as if everything was still running fine.

The app was working fine before on 4.3.4 before I upgraded to 4.5.1p2. I have deployed to both iOS and Android and experienced the same problem. Is anyone else experiencing a similar problem? I'm assuming its a bug in the new Unity version as it worked in a previous version. Is there a work around that I can do to get it working? Thanks so much!