hi all i have a question regarding failsafe.. i have a flamewheel 450 with naza and gps and it works flawlessly on rth which you set up with naza assistant which you can check bye turning the radio of and it goes to failsafe which is indicated buy the box in assistant tuning blue but i tried it it on the phantom bye tuning the radio of and nothing changes ,ie the failsafe box stay greyed out is this normal ? any help would be gladly appreciated . regards martyn