To be honest with you it seems like a MS issue; im sure NG want the direct link but MS has always been a bit iffy with developers with lack of communication etc.
An email would be nice I agree but even the actual game tells you to remove 3rd party content if the game crashes etc and many people might have emails off etc so it just turns into a big hassle.
MS have messed this update up a little unfortunately, not only did they break navdata they also removed user uploaded airports that were submitted.
I saw somewhere that removing the navdata from the sim, starting it, deleting Scottish Bush Trip from content manager then shutting the sim down then reinstalling navdata might fix it but I heard that from a friend.
Either way im staying with navigraph, this issue isnât caused by them and theyâre stuck at the same level as us,