Really strange behavior ... I would put in the new pier, looked fine in V3, then it wouldn't show in V4 (the two white piers sticking out to the left). I put in the new white piers and they showed fine, but the pier along the building disappeared in V4 (which it had not done before). I replaced that with the white piers and finally have a version that looks the same in V3 and V4. I've never seen this before. But it is fixed and working now. Here is the final image ... the only change is the pier along side of the building, that was changed. Now it all works.