The -2 image is slightly less fishy than the 1 version but still the vertical lines are still curved as indicated by the red straight line at the left:
The lens profile for the 15mm cannot defish the 10mm properly.
The Nikon-attached Sigma 10mm fisheye lens profile is the one to use after editing a copy of the LCP file to work with JPGs as shown in the first reply. Why are we still talking about using a lens profile other than the one for the Sigma 10mm FE?