Unable to patch a closed curve

Hey there,

I’ve got a closed curve that I can’t really get to close up properly using the Patch component in Grasshopper (or any of the plug-in alternatives I got). I guess it’s too curved for it to properly construct a surface. Anybody here that has a better idea to construct a surface from the curves? (preferably with a smooth surface as result)

Added the file below with the curve internalised.
p.s. working in R7


patch_issue.gh (36.4 KB)