Remote LED for ARMED blinks and is not solid "on"

I have installed remote LED’s for both GPS LOCK and ARMING on APM 2.5 with v2.9.1.  LED_MODE is set to 3 and verified.  GPS LOCK LED is solid “on” when locked.  ARM LED blinks slow (1/sec) for DISARMED and fast blink (2/sec) for ARMED.   Shouldn’t this LED be solid “on” for ARMED?

Blue LED on AN6
Red LED on AN7


Any help appreciated.

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  • I had the same problem yesterday, but it was because the APM was powered with the USB. After I connected with the Normal Lipo power, it worked fine and Red LED was solid on when armed and blinking when not armed.
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