And, 11 it's missing. Which is strange, since addons that change this file, are usually supposed to use a feature in P3D *itself* that add/removes sections on request, so I doubt that routine is bugged (although I never tested it), and I'm sure from a previous post, that SODE uses that feature too.
Could be some of the other product installers you have accessed the file directly, possibly screwing up the ordering, or you edited the file by hand ?