Smartcopilot Frequency cannot be changed

[DasMaexle]

Hi, I have a problem. If I want to fly with my friend via Smartcopilot, the frequency of many aircraft such as the Zibo 737 and the JarDesign A320 cannot be changed. As soon as I want to exchange the standby frequency with the active frequency, nothing happens and the active frequency remains. In addition, the standby frequency then shows the same as the active frequency. As soon as I quit Smartcopilot it works again. Has anyone ever had the same problem and has a solution? Thank you