You need the beta client app for the navdata to work with MSFS 2020.
Download here: Release notes - Navigraph Navdata Client - MSFS Navdata Beta / Release Notes - Navigraph
You need the beta client app for the navdata to work with MSFS 2020.
Download here: Release notes - Navigraph Navdata Client - MSFS Navdata Beta / Release Notes - Navigraph