MSFS 2020 Microsoft Store – WASM Error – Package files have not been copied yet

Hello. I am using MSFS 2020 Microsoft Store/Xbox version and purchased Miltech Mission Hub through the in-game Marketplace.

Every Mission Hub mission gives me:

“WASM Error – Package files have not been copied yet. Cannot start scenario.”

I have already performed a complete cleanup and reinstall of Mission Hub, deleted the WASM/Mission Hub folder, restarted the PC, repaired Gaming Services, verified write permissions and verified the InstalledPackagesPath.

My InstalledPackagesPath is:

C:\Users\varga\AppData\Local\Packages\Microsoft.FlightSimulator_8wekyb3d8bbwe\LocalCache\Packages

The Community folder is writable but remains empty when I try to start any mission.

Could you please confirm whether the current MS Marketplace version of Mission Hub for MSFS 2020 has the latest WASM fix, and provide the current build/update if my Marketplace version is outdated?

Thank you.