What should I do if I can see the menu items, but cannot start a measurement or change settings?

Video CentrationvisuReal Master

Please check if the version number is visible in the menu. If not, you are currently not connected to the Master. Old data stored by your browser is displayed, but this is not current data. If you clear the browser’s cache, you will probably find that nothing is displayed. Check if you are connected to the Master, if necessary connect again.