Spirit System

I've just build a new heli and can't setup the failsafe. Hardware is:
- Spirit Pro
- FrSky XR4SB

Everything works fine except of failsafe. I did program it few times in Spirit, I think I also set the receiver to send "no pulses". But what happens is:
- The system is running
- I turn off the transmitter (it says "receiver still connected" and asks for confirmation, I confirm)
- one second later all 4 servos go to extreme positions and start to move wildly

What can be the reason?

Hi,

I had the same thing, I set the same for Spirit and XR4SB.

Netopyr