The problems are not a v3->v4 issue; they are from the drop shadow that was added on your 2371 element. Drop shadows are a new feature in v4.
Drop shadows can require a lot of rendering calculation - especially when they are large. In your case, you are also scaling elements which means the drop shadow is rendering a a much larger size. I would recommend removing all the scales of the element and enclosing groups, or render the drop shadow ahead of time via a bitmap editing program.
When the drop shadow is removed, both problems are solved.