That's strange, mine seems to work just fine! When I move the window around it changes where the "center" is based on my model, mine isn't still stuck to the screen location!
Can you share what your Follow Movement settings are in 1.4.6? The only other things I can think that would affect it are the location of the movement point for each object, EG: the "offset" of the "center" marker for the moving items in Properties, and your "Mouse Follow Screen" settings in the Setting menu.
I can make a video of my settings and how things move around if that helps, just let me know!