We will keep nagging you until you fix this.
Enscape team already admitted it was feasible but just not with live sync. Who in the right mind cares about live sync if the actual material, UV, separate material on each surface on one polysurface object, etc, doesn’t work. The final result is much more important. The preview render can be examined with Rhino Render view.
No need to fix, just bring it back please at least.