ReelSmart Vector Blur: Foreground objects not blurring correctly

Hi I've had the Reelsmart Vectors 3 plugin for awhile, but decided to try to put it into my workflow recently. For the most part its nice, but I've noticed that foreground objects will end up with a hard edge. From what I can tell its because each pixel determines its own blur and doesn't look around to see if any pixels should be blurred on top of it. Is it possible this problem is fixed in v4?