MOT_SPIN_MIN always changing

Morning all.
Happy Easter. I am wondering if anyone else out there has the same issue with QGRoundcontrol. This happens on all my models. All are running current arducopter and all my Qgroundcontrol versions are current.
Each time I make a change to the model using qGroundcontrol. The MOT_SPIN_MIN setting goes to .05. This happens every time. No exception. I am puzzled as to why.
If there is anything I can do to prevent it.