I am trying out the 4.0 Beta and I am running into a problem where the Stage3DProxy has instances of Stage3D trying to access a viewPort property. This leaves me with the following error:
1119: Access of possibly undefined property viewPort through a reference with static type flash.display:Stage3D. Stage3DProxy.as /3DLoader/[source path] src/away3d/core/managers line 43
I have the latest FlexSDK (4.6.0) as well as the flash player 11 playerglobal.swc. It just seems as though I have access to the Stage3D class, but that it does not have a viewPort property.