Why does my geodesic curve end with a pig tail like this?

I created this from a 1/8 slice of a sphere, my other geodesic curves are perfect but for some reason this is coming out weird and I can’t figure out why, everything is symmetrical so far as I know.

squirly geodesic.gh (17.0 KB)

Find which surfaces have 3 arcs than select one of them

squirly geodesic_.gh (18.2 KB)

That makes sense and it’s so much cleaner. Thanks.

Discontinuity, gotta remember that one.