Hi…,
Welcome to our new forum.
Best to do the following:
- open the Navigraph Beta Installer and remove the AIRAC cycle
- close the Navigraph Beta Installer and uninstall it via the windows feature
- open MSFS and install MSFS update
- Close MSFS
- download and install latest Navigraph Navdata Update Beta
- install the new Navigraph Beta Installer
- open the Navigraph Beta Installer and install the latest AIRAC
- start the sim
Cheers
Ian