Can't move circle when adding a face

When you add a face manually, you are meant to be able to resize and move the circle to identify the person. This isn't working for me and the circle is locked in its default position. When I try and drag the small dot on the circle (or anywhere), the photo behind is dragged instead of the circle.

when manually adding a face can't move ci… - Apple Community

Can't move circle when adding face - Apple Community

Photos unable to move/resize manually add… - Apple Community