"invalid number entered" when setting battery monitor in Copter 3.4.7

I am trying to set the battery monitor, but I keep getting these errors in Copter 3.4.7






As soon as you set the voltage monitor type, for example “Analog Voltage and Current”, you have to reboot the flight controller, then the other settings should all work OK.

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Thanks @xfacta! Got it working now, you were right!