Auto Buttonhole Not Working


dmrestates
 

I have MC10001 that has been a workhorse. The embroidery is absolutely beautiful and the ordinary sewing has been flawless until today.  I put the auto buttonhole foot on and pulled the lever down and the button in the slot.  It sews the right side and the end part perfectly, but when it starts sewing the left side, it does not stop but keeps going past the place where it should stop. Any idea what could be wrong?

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