Once one of the isometric views have been selected (the diagonal houses in scenes), none of the other ones will select. If I manually rotate, it still won’t go to the indicated corner (back left, back right for example) unless I rotate into that ‘zone’.
So effectively, all the isometric views only snap to the nearest one.
The isometric icons from whatever corner you select all show the same isometric view from the current quadrant your view is in. This is unlike how it used to be: one could choose between one of the four corner icons and then get the expected quadrant isometry. And looking from below one could get the other four isometric views.