Cannot see composition in composition window

I took a look at the tutorial. I would only give it a C. The workflow does work but it is inefficient and the explanations lack clarity. 

In the presenter's workflow, the layers in the nested comp must be 2D layers and positioned in the center of the comp panel when looking at the Active Camera, and the nested comp (Frame) must be 3D. If the layers in the Frame comp are out of position or are 3D layers and they are not in the center of the comp, they will be out of position in the main comp when you collapse transformations. 

You have just made a workflow error somewhere. Center up the layers in the nested comp making sure that they are all 2D and you are looking at the Active Camera view. That will move them back into the right position as long as you have not changed the camera in the custom view.  You should really be looking at two views in the comp panel when you are lining things up in 3D. There is no bug here, just user error caused by a less than good tutorial with a bunch of views.