That's not a problem of our Zurich scenery, you have probably installed another scenery for this area that is excluding some objects, added some of its own (the white Docking System is not ours) and since this other scenery is excluding some of our objects, the docking systems, even the correct ones (the one from our scenery is the darker grey one) appears to be floating, because there was probably a building there.
So, this is not an issue of the scenery, you just need to remove any other sceneries for this area you have installed, that are creating the problem.
And, of course, you should leave Zurich on top of the Scenery Library (only AES, if you have it, should stay on top of it), which where its installer place it. If you moved it to layers below, it's much easier to have such problem with other conflicting sceneries.