Pro 2019 Mac Push Pull does not work

I am using SketchUp Pro 2019 on a Mac, and my push-pull tool does not work. I draw a simple rectangle, select the Push Pull tool, click on the rectangle (the face turns into dots), then drag my PP tool. Nothing. Any ideas? Thanks.

The correct process is to get the Push/Pull tool, click on the face and release, move the cursor in the desired direction and click again to finish the extrusion. Let go of the mouse and type the distance if a precise extrusion distance is needed.