I think I do have the latest one installed, on the SDK, it says 3.2.3.16769
Your P3D is very old, and it's surely affected by that bug. The latest version is 3.4.22.19868
And, as I've said, the download links for every P3D update are in the Downloads section of the Prepar3D site, that you access with your user account, and there you can surely find the very latest version.