Flight Number in ATSU does not match flight number in FMGC

[heclak]

Simulator Version

2024

Aircraft Version

Development

Build info

{
    "built": "2025-03-09T18:39:01+00:00",
    "ref": "refs/heads/master",
    "sha": "c2a79ea1d00e02c3da35df75961d75fe793c9645",
    "actor": "tracernz",
    "event_name": "manual",
    "pretty_release_name": "master:c2a79ea1",
    "version": "a32nx-v0.13.0-dev.c2a79ea"
}

Describe the bug

Note: This is a 2024 only bug. The SDK issue has been reported and logged in the dev support forum. https://devsupport.flightsimulator.com/t/unable-to-set-atc-flight-number-atc-id-and-atc-airline/12486

ATSU Flight number doesn't match the flight number in the FMGC section after importing the flight plan from simbrief or setting the flight number manually.

This issue is due to a bug in the 2024 SDK where the function to set the 'ATC FLIGHT NUMBER' simvar in not functioning as expected. The flight plan import will attempt to set the simvar (which fails in 2024) and the ATSU will retrieve the flight number via the simvar.

This renders the ATSU pages which uses the flight number inop due to an incorrect flight number.

A long term solution would be to skip the use of setting and getting the flight number through simvars.

Expected behavior

The flight number in the ATSU section should reflect the flight number set in the FMGC page.

Steps to reproduce

1. Navigate to a page in the ATSU that uses the flight number (eg. ATC COM Ground Request page) and observe the flight number
2. Go to the INIT page and import a flight plan or set a flight number manually
3. Return to the previous page in the ATSU and check the flight number. Flight number would still remain the same.

References (optional)

No response

Additional info (optional)

No response

Discord Username (optional)

Heclak

[tracernz]

The aircraft systems should never take the flight number from this simvar except at init.