polygon boundaries including line above or below

1. It is really exceptionally nice to see it working VERY well now in almost all cases I have seen so far. Bravo!!!
2. I have seen a strange phenomenon in the following cases: segmentation missed line 1 but included it in the polygon of line 2 (i.e. what the system considered as line 1). I manually add line one baseline, but it does not get an independent polygon. I have to move baseline 2 to get a polygon for baseline 1. The same happened for the penultimate line and the last line.