Good day,   @Mathijs Kok I have been investigating for weeks and can confirm that finally, I have SOLVED the problem. First, you have to uninstall all the Airbuses, then go to Documents/Aerosoft and delete (or rename) the Airbus, Airbus_research and General Folder (in which you can't delete A3XX EFB, as it contains some fonts (so delete everything apart from the fonts folders)). Then, reinstall the Airbus and it will be working correctly again. I hope this solved the iss