Spirit System

It´s a problem from a guy on our flying field. He uses a spirit pro and a frsky transmitter with telemetrie and integration.

he can set the percentage of the rescue collective pitch in the unit to 60 or 70 percent , save it to the unit and everything is ok.

But as soon as the unit is conneted to the reciever and the transmitter and telemetrie , it goes back to 50 %.

If the telemetrie cable is not connected to the unit everthing seems to work properly.

Hope you can help with so little information but it is not my system and I can only describe my observations

Very likely your friend configured P: Rescue Collective Pitch in the channels and he is changing collective pitch percentage by assigned channel.
So the behavior is correct, but he probably forgot about this.
He can unnassign it in the Channels window.

You solved the problem. Thank you very much for your help .