I don’t know why this rectangle is failed to make. All the points align, the Z levels are the same, but still recognized not a valid input. Could you give me the reason?
The next thing id check is if the points are in the right order. E.g. not that point 3 comes after point 1 causing a self intersecting polygon.
From your screenshot it looks like some may be working and some arent. If so, check the indices you get nulls at and review the related points.
