Thank you for the quick response.
Yesterday forgot to comment that codes 10 and 11, usually associated with the beginning and end of a line, appear as 10 and 10, is it on purpose ?. In the DXF file, codes 10,20 and 30 and 11, 21 and 31 for x, y and z appear at the start and end of the line. If that's the case, I would only change the way I access those codes through lisp programs.
I can not wait for the next version.
Keep going.