I’m still using FS9!
Its run superbly for years for me.
Hence the long time having add-on scenery.
I saw this post regarding a similar issue.
https://forum.navigraph.com/t/airac-cycle-2312-rev-1-for-captain-sim-is-bad/14290/2
2311 will be the last perfect nav data for me too.
Is it possible to go back to it? Just for me not a public release?
I’ve spent quite some time Googling for an answer and there just isn’t one. There are many posts on blogs about heading irregularities as I’m having!
Ta
Grayson