Are the section curves closed , end to end or is there a gap ? - Use the measure function and measure minimum distance from the end points.
NX is very precise so if there is a gap, it needs to be very small for NX to "bridge" .
If you go Edit - Feature- Remove parameters you can "kill" the Pattern Geometry feature.
The lines will then be totally non parametric and will not be visible in the part navigator.
Sales of used software are not popular by the software companies, normally they want to sell the software "as new".
The real problem is the license which is locked to a specific server.
The license is not impossible to crack but be aware that Siemens is tracing illegal copies and will knock on...
I assume the picture is an illustration to the question? Else you would do this specific model in 2 features, 1 extrude and 1 blend.
There is a very old command Sheet from Curves, ( + 30 years old command , it will not be updated.)
It will create all planar sheets in one go, but non associative...
Create a datumplane in the center of each pair ( The bisector plane) use the datum planes instead for the constraint. ( Touch/Align since it's 1 on 1)
If you anyway are to write code for this, you would be using ootb functionality and full associativity.
Regards, Tomas
NX plotting was inherited when UGS merged with SDRC in the beginning of the 2000's
The reason it's "kind of special" is that it's built to work on many operating systems, Siemens/ UGS did support both Unix and Mac os at the time.
I guess that Siemens keeps it but will not touch it anymore.
Have you tried to re-select the Origin curve ?
In this case , it seems that maybe a Through Curves feature with the option Normal to end sections might do the job.