Hi all,
To provide an update on this, Navigraph have kindly been looking into this and they have found that the root cause of the navdata issue is due to differences in how MSFS 2024 handles aircraft packages compared to MSFS 2020. Essentially, whenever a file in an MSFS 2024 aircraft package is updated, that change must also be reflected in the package's layout.json file. This is very strictly enforced in MSFS 2024, so much so that even a small change in file size caused by a change in navdata is preventing the WASM gauge from reading data past a certain point in the file. MSFS 2020 aircraft packages are much more lenient in this regard, with small changes to file sizes being possible without updating the layout.json, hence why this has never been raised as an issue prior to the product(s) becoming MSFS 2024 compatible.
There are some changes we can make on our side that will permanently work around this issue, and those will be included in the next update to the affected aircraft.
In the mean time, for users who would like to use updated navdata in our MSFS 2024 compatible products we recommend the following steps:
Update the navdata for the respective aircraft in the Navigraph Hub.
Download the free, community created MSFSLayoutGenerator tool via the following link:
https://github.com/HughesMDflyer4/MSFSLayoutGenerator
Navigate to the following file directory: ...\Community\justflight-aircraft-rj (the aircraft name will vary for each product).
Drag and drop the "layout.json" file into the MSFSLayoutGenerator.exe. The Date Modified filed of the layout.json will update once the file has updated successfully.
The changes will take effect the next time the simulator is launched.
Mark - Just Flight