VTOL forward thrust motor runaway when armed

@Tim.Talon wrote:

Forward thrust motor (Aux 5) spins to full throttle when vehicle is armed.No control of the motor until battery is unplugged. All other servos and multicopter motor operating correctly.

Forward thurst motor in AUX 5 slot on a Pixhawk 4 with Power Management Board.

Fun Cub airframe settings
MOT_SLEW_MAX 0.00
PMW_AUX_DIS5 950us
PMW_AUX_FIAL5 -1us
PMW_AUX_MAX5 -1us
PMW_AUX_MIN5 -1us
PMW_AUX_REV5 Disabled
PMW_AUX_TRIM5 0.00
PMW_MAX 2000
PMW_MIN 1000
PMW_RATE 400hz
PMW_SBUS Disiabled
THR_MDL_FAC 0.00

Not sure what’s going on???

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