Bad gradient data for the Norton Summit climb portal

I recently rode the Norton Summit segment on the climb portal and it’s quite badly wrong particularly between gate 4 and 3. I’m a local to the Adelaide area with over 100 ascents of the climb and I can say categorically that there are no downhill sections mid climb and absolutely no sustained 13% sections.

It looks like velo viewer is the source of the issue

There appear to be a couple of versions of the climb on velo viewer. The one with the very consistent gradient is more correct looking than the one used in game.

I agree it’s not right, the bottom section through the switchbacks is a bit off and that 13% section simply doesn’t exist.
I’m also trying to work out where they’ve set the finish, best guess is all the way up at the Lobethal Rd/Woods Hill Rd intersection. No wonder it took so long.