Hello Tharwat,
Much appreciate your effort!
I have been testing a lot and only a few times it went wrong. But I am very satisfied!
Here is a photo just to be sure because you may know why it can go wrong?
It only happens with a standing rectangle, straight with 4 angles of 90 °.
Cannot reproduce the error it happened spontaneously... with the same error over and over; the zigzag goes to the right as shown in the picture.
But like I said, no problem for me!
Would like to thank you all very much!
Christina