RebuildCrvNonUniform has different behaviours if works over one curve or several curves... weird!

Hi there folks!

Hi have Rhino 6.29 and I use everyday RebuildCrvNonUniform hundreads of times.
I found that it has different behaviours if selected to rebuild one curve (works as expected) or if I have several curves… sometimes it works well in 2 or 3 selected curves, just as if you do it one by one selected.

Rhino version:

I’ve uploaded a video so it can be easily understood.
I see this as a bug, but maybe there is a workaround… could i do some script to repeat RebuildCrvNonUniform over each of the selected curves?

Video:

Thanks ahead :wink:

Hello - thanks, please post a file that has multiple curves that do not work as expected.
-Pascal