I don’t think this issue is connected to SU9. I’ve had 100% reproducible CTD at YPAD since SU7, prior to SU7 no issues, on Xbox.
I reached out to the Impulse team back in December who were very helpful, but unable to resolve the issue.
This was the catalyst airport for me to starting this thread,
https://forums.flightsimulator.com/t/constant-ctd-s-on-xbox-with-3rd-party-scenery-airports/
Subsequently, I’ve encountered CTDs at many other (now the majority) of other 3rd Party Airports.
So while prevalent at YPAD, this issue runs much wider.