Please See Screenshot. When I'm close it's not 3D and transparent.
Your screenshot shows it IS 3d, but not transparent, which is not normal, and doesn't happen here, and nobody every reported it in the 4 years Zurich has been released, so it must be something else, like a video driver problem or a settings problem.
In any case, we are releasing a large update ( with the new Terminal B ), very shortly, probably tomorrow, maybe this problem will go away.