Hi Michael, check this video:
http://take.ms/cogk7

Hi Andrei, thanks for the video, that helped me understand.

So there is some logic in the cplane mechanism where if the cplane has its horizontal and vertical axes aligned with any of the Top/Front/Right world planes, it keeps the ortho views in their regular world orientations.

I don't really remember why I set it up that way, probably I was worried about having the world Top view showing in the Front or Right viewport... But I agree it is probably better not to have that kind of exception in there, so I will modify it to work like you were expecting for MoI v4.

- Michael

Thank you, that thing confuse me for a very long time.
Today I wanted to make script that will set CPlane and than automatically goes to the top, but I first thought of this thing and decide not to make it because in some situations like in video I do not want to go to the top.