Thank you for the clarification.
Could you please confirm if I'm right in assuming that you're setting the FPS value in the Color and CPU
window that you invoke on the toolbar in the Full Control window?
If this is the case, please try setting the FPS value in the Connection properties window that is invoked in the main Viewer window (i.e. from the address book). The FPS value is greyed out if the CPU usage
is set to any other value than FPS. Please try setting the CPU usage value as FPS
and then changing the FPS value itself. In this case, the FPS value is saved for this remote Host.
Please let me know if this worked.