Transition command

[cubalibre000]

Hi,
I've have some problems with this command.
I've exported the file to use at home and replicate what we have discuss here.
If you see the attached video, extra curves are created in different manner depending how the model is rotated.
What is the rule how NX creates this curves ?
Can the user decide the shape curve ?

Thank you...

Using NX 8 and TC9.1

 

[cubalibre000]

Here another problem.
The curve flip.
The specify origin is always grayed.

Thank you...

Using NX 8 and TC9.1