Can't Move Rectangle in Sketch mode

If I use the rectangle tool in sketch mode, and then I want to adjust the position of the rectangle relative to the face that it was drawn on, or i want to extend one side of it-- I am unable to move any of the sides or even the entire rectangle.

All the constraints in the screen-right menu are greyed out, and auto-constraining is set to off. I just do not understand what I am missing. I’ve clicked and unclicked the ‘nodes’ along the rectangle but whether they are solid (purple? blue?–can’t tell) or have a bullseye center, it doesn’t seem to make a difference. What I am I doing wrong?

Running into the same problem.