Capturing and downloading polygon using ODK or Geoodk

Hie
I want to ask for the workflow steps for configuring odk build, capturing and downloading polygon parcels

I have created my form in ODK build and exported it to xml and then load it onto my tablet for field survey. I have succeeded on points data by using the odk briefcace and convert to shapefiles but i am having a problem on polygon surveys, on some of the downloaded polygon csv there are no coordinates at all and on some all the corner coordinates are in one field

Closing in favor of Capturing and downloading polygon using ODK