Custom LVC not working on v2 MMM....auto lipo works fine tho

[Finnster]

Got my MMM today, and tried setting the LVC to custom and the controller will not run. I changed it to auto, it counts 5 (I have a fully charged 5S, shows 21.x V) and runs fine.

I've set the custom LVC to as low as 12V and still nothing. The leds appear very weak, the fan comes on on thr pulls, but there is nothing to the motor. I don't get it. Works fine in my SW and MM. Firmware issue? Anyone else see this?