You have the Delphi V2 harness , (2016+) you need the OEM regulator that uses part number 32800HN9121 – Which is GD250, GV700
Hyosung used GD & ST regulator because they changed the stator unit completely (it is green stator) , older EFi models had black stators with smaller plugs.
Henceforth your GD regulator did fit. I would get the OEM one as it will probably outlive any china-clone (which don’t exist) , china just makes really knockoff ones for older models , they are quite wild (hit & miss in terms of success)
It is probably why I only do true-mosfet Shingden ones like you saw on the shop, fit once and forget about it for years & years (unless your electrics / stator / battery blow it!)
thank you very much for the “bug” in regards to the add-media button , I will fix it!