Surface order

[akilli (Ethan Gross)]

See this thread. You may have to sort the resulting surfaces using David’s method because there’s no way to predict in what order it is carried out.

Shatter troubles!

Surface Split is a single operation on all curves at once. The output cannot be trusted to be in some sort of meaningful order. You’ll have to sort the results, probably using distance to a base point/line of the region area centroids.