Cogging at start PWM from esp32 to VESC - QS205 hub motor

[memeticmusic]

I use an ESP32 to receive throttle input, output PWM to VESC (Spintend 85/250), I use hall sensor (tried sensorless with no difference). I look at the input in VESC tools where it reads fairly stable input signal. esp32 powered by vesc 5v from ppm out.
Something else happens when I let go of the throttle quickly, it continues to send power to my motor for about 2 sec then drops to zero, if throttle released slowly, it works fine.

 

[neptronix]

Really bizarre. I use the spintend ebike adapter v3 with a spintend and it runs smooth.

You've ran the motor auto tune already, yes?

 

[memeticmusic]

Oh thanks, I did not know about this adapter, I will try it.

 

[memeticmusic]

That adapter made no difference.