logged WASM Crash While Editing Flightplan

[Roders]

@iniBuilds this is getting a little ridiculous now.

Details below. I changed approach to RWY 14 at LSZH (NEGRA 2A). The crash happened when I tried to enter the waypoint TRA after AMIKI. This is basic stuff iniBuilds - the fact that the aircraft cant handle this is a joke.

• Aircraft: A340 EIS 2 + Passenger
• Simulator: FS2024 SU4
• Navdata Method: NAVIGRAPH
• OFP: VABBLSZH_PDF_1768099299.pdf
• WASM Error: "WASM: Error during FMGS_gauge_update execution. Error code : 0xc0000005"
• Specs: i7-9700K, RTX2080 and 32GB RAM.
• Autosave File:  1768124718.bin

[richboy2307]

Hi @Roders

Sorry to hear about the WASM crash, and thank you for reporting it. The team will be investigating further.

Although I haven't been able to reproduce this crash myself, I did notice some discrepancies with the VNAV calculations after applying the changes you mentioned, which might provide a clue.

To help us better to reproduce the WASM crash,

• Are you experiencing a consistent WASM crash when performing this action (based on the attached autosave)?
• Did you make any modifications to the flight plan prior to this autosave?

 

 

Thanks!

[Roders]

Hi @richboy2307,

Appreciate the help! Sorry about my rubbish attitude there, flightsim can be frustrating. 

I didnt have the nerve to try reproduce the error when I restarted the flight. Will spawn the aircraft in over the weekend when I have some time and try make the same inputs.

For context I didnt modify the flightplan until descent - I had ILS 14 NEGRA 2A arrival preloaded before departing Mumbai and left eh FLPN overnight with auto S/C etc. The crash happened as soon as I tried to enter a waypoint after AMIKI. I selected the waypoint from the FPLN page in the MCDU and then entered TRA into the 'Next Waypoint' field, it then prompted me to chose between two TRA waypoints. I selected the correct one and then pressed insert, which is when the crash happened. I noticed the PFD and ND froze for a couple of seconds and the range selector knob didnt work before finally the screens went orange.

I also noticed when using PLAN mode and cycling through the FPLN that after entering ILS 14 NEGRA 2A the MCDU drew a path straight from AMIKI to CI14 for runway 14, which was confusing as surely it should insert a discontinuity. There are AMIKI transitions for RWY 14 but they involve a series of turns and ZHxxx waypoints (you also have to go into VIAS to select it). I usually enter TRA manually as I noticed this is what most ZRH controllers give me whenever I fly in. Perhaps the lack of a 'discontinuity' confused the aircrafts VNAV calc when entering TRA as an intermediary waypoint. What I was expecting was AMIKI - TRA - [DISC] - CI14 but I think the aircraft was trying to solve for AMIKI - TRA - CI14.

Unsure, ill see if I can reproduce.

Best,

Roderick. 

[richboy2307]

@Roders

Thank you for your time and for sharing your concerns. I understand your frustration, we genuinely do our best to address WASM crash issues because our goal is to provide a smooth experience. That said, these crashes can be difficult to reproduce, if at all, so every bit of information you provide is incredibly helpful!

10 minutes ago, Roders said:

I selected the waypoint from the FPLN page in the MCDU and then entered TRA into the 'Next Waypoint' field, it then prompted me to chose between two TRA waypoints. I selected the correct one and then pressed insert, which is when the crash happened. I noticed the PFD and ND froze for a couple of seconds and the range selector knob didnt work before finally the screens went orange.

Thanks for the additional information; it was very helpful.  Still no WASM crash, but I did notice the unusual ND line drawing/flickering behaviour, which could be another clue. Perhaps the WASM crash happens eventually whilst the PFD/ND system was re-drawing paths from memory.

39 minutes ago, Roders said:

I also noticed when using PLAN mode and cycling through the FPLN that after entering ILS 14 NEGRA 2A the MCDU drew a path straight from AMIKI to CI14 for runway 14, which was confusing as surely it should insert a discontinuity. There are AMIKI transitions for RWY 14 but they involve a series of turns and ZHxxx waypoints (you also have to go into VIAS to select it).

Thanks, noted with regards to DISCON as well. In the meantime, try performing all the actions through the F-PLN page instead (see video below)? Seems to work better in this instance (though there is no DISCON between AMIKI and CI14 initially still). 

If you encounter the WASM crash again, please let us know. We'll keep working with this in the meanwhile.

Thanks!

[Roders]

Thanks @richboy2307, ill reproduce the same steps over the weekend and report back. Appreciate the help on this!