Calibration problem

I've got calibration problem of MMM with KO Porpo EX-1 UR 2.4G.
Here is my setting.
MMM arming delay time: 2s
Transmitter:
Max throttle position:150
Max break position:150
Calibration procedure stopped in break calibration and LED was blinking red.
There is no such problem with another transmitter.
(Finally, I calibrated MMM with another transmitter and switched it to KO EX-1 radio. It seems fine so far.)
Anyone could help me out?