I have verified in the current development version that the RNP-Z at KLGA does not crash. In fact I am flying it now using the Milton 4 arrival. I did have to delete the last two STAR waypoints in order to transition to the approach at MINKS without backtracking.   This particular RNP approach should not be a problem for the sim CRJ. The main reason it is RNP is because it requires RNP 0.18 lateral accuracy and full VNAV which the real CRJ autopilot cannot provide, but other than that, it is relatively straightforward.   I also loaded a couple of other RNP approaches in the US, with no lockups.

We are unable to recreate this issue but will keep en eye on this topic to see if more information is found.

Hello,   FMS Vol.6 documentation is not complete. What is "Runway Update". I see it, before takeoff on LEG Page:   Thanks for your help.   Greetings Olaf

I had the same issue since the latest msfs hotfix 1.15.8 - but it works for me if i only click esc and reload - all fine then... msfs was not runnin as admin because then i can t purchase stuff inside the marktplace

I have had the same issue at EGKK Gatwick . The first time immediately  after landing almost froze 1 or 2 fps. When I next tried to load at a gate I got 10 mins use then the frame rate crashed again . I haven't wanted to use it since.