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SDK Help Loading Flight Plans or Adding GPS Waypoints in-flight, in WASM Module for MSFS

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3
Hi everyone,
I’ve been working on a WASM module and I’m running into issues with getting flight plans to appear on the GPS during a flight.
Here’s what’s happening:
  1. AI Flight Plans: I’m successfully loading AI aircraft flight plans from the \work folder using SimConnect_AISetAircraftFlightPlan. The AI follows the loaded plan as expected, so no issues there.
  2. User Aircraft Flight Plan: I’m able to load a flight plan for the user aircraft using SimConnect_FlightPlanLoad. The process completes without any errors, and the log shows a successful load. However, the flight plan doesn’t appear on the GPS in the simulator, and I’m not sure why.
  3. GPS Waypoints: I’ve tried using SimConnect commands to add GPS waypoints directly, using parameters like GPS WP NEXT ID, GPS WP NEXT LAT, etc. Unfortunately, these waypoints don’t seem to appear on the GPS either.
The AI flight plan loading works perfectly, but I can’t seem to get the user aircraft’s flight plan to display on the GPS, even though the commands execute successfully. Has anyone encountered similar issues or can provide guidance on what might be going wrong?

Thank you!
 
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