APM 2.5 won't arm via radio on 3.1.2 but will via Misson Planner
I recent upgrade my 3DR Quad to 3.1.2.
Now I find that I can't arm via my Spektrum Dx8 using the standard down and to the right on the throttle in stabilize mode. I can arm via Misson Planner either thru the telemetry link or when plugged in via USB
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