Some times when I try to connect two shapes with the connector tool one end of the
connection will go to a shape, not the one intended, almost automatically. Usually the unintended connection is to a shape which is a large shape near the edge like a boundary
or a border. Then I choose the end of the connector to reposition it and the little red box appears on the end of the connector and I begin to drag the connector to the right shape. But before I can get the connector attached to the correct shape the connector jumps to the wrong shape again.
Allen in Dallas