Hello, Did you ever resolve the Juli 2010Q with gracie frame and gracie stitch regulator activating the thread cutter. I believe you are right the foot pedal connection to the regulator is sending a signal to cut the thread. I am having this very same issue, going through all the troubleshooting steps, even including checking jumper connections on the stitch regulator. No help in any of my efforts.Just wondered if you had discovered a fix.