Why the drone didn't stop moving when velocity set point is 0?

ArduCopter Copter 4.0
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1

Hi,
I had an indoor flight test that I used QGroundControl and forgot to set EKF origin.
I later found that the drone failed to stop when the GUIDED vx set to 0.

1858×1096

Here’s the flight log https://drive.google.com/drive/folders/1rOJki-0wcavUQ0X4XenK7BRqvu1zk435
Do you have some suggestions?
Thanks,
@cnpcshangbo