RNP AR Approach Issues

My aircraft of choice is Fenix A320
FS2024.
Managed mode, Final App.

Flying two RNP AR approaches the aircraft gets to the last way point prior to rwy (final), when set in managed mode, then the descent becomes very shallow with the blue arrow jumping past the runway into the bush. This would lead to overflying the airport and impacting ground several miles away! The approaches I have had issues with are YBNA RNPX rwy 24 and the way point in question is NA470. All is good prior to this, aircraft configured on glide path etc.
Another with the same issue is YWLM RNPX AR rwy 30 and way point LM620 is the problem here.
I have had success flying the YBCG rwy 14 RNP AR in the Fenix, so it can do them.

Any suggestions?

just curious, what was the temperature at the time of the approach?

Maybe around 18c or 20c

Hi,
I´m honest, I have no idea … I have checked the sequences and the values in the sequences, and both RNP approaches seem correct (at least from the navdata side). Possible that Fenix has an answer for this, but I can´t see any navdata issue here …

You wrote that you can fly it, and I trust you to 100% … so it must be any other side effect for this situation.

Cheers,
Richard

Thank you for investigating the issue.

Just last night I performed the RNP AR into YBCG and it flew the procedure perfectly. Like you, I am not sure what is happening on the others. All is good with the green bricks showing Final App on, until, in both instances, the aircraft passes the last WP on the approach, where the “vertical brick” moves up and the descent reduces significantly. Anyway, until I find a cure, I’ll use the RNAV approaches and hope they work for me. Thanks again.