One thing that I discovered is that it is the "idfgen.dll" responsible for the 45 deg bends that replace the the 90 deg bends.

5.30 use the version 7.3.0.13 of this file.
5.20 use the version 7.0.0.16 of this file.

I think that it should be replaced with one that is functional.

Waiting for some help,

Regards,