Depending what options you configured on the transition logic, the outgoing scene will only render objects that are keyframed. So it's possible you have an object that is not keyframed and therefore not being rendered on the outgoing scene. If you have an object that does not need to animate, but you do need it to render, just add a dummy keyframe on it.
Also, open up the live log and take the 2nd scene and you can see what Rule both the incoming and outgoing scenes are choosing to use, and thus you can see if the outgoing scene is playing the correct scene director.
As Malcolm said though, we could help you much more if you post a copy of the scene and I can tell you where you're going wrong.
#XPression