No longer able to resize image on macbook

[Randy Cain 5]

I've drug the corners of various images to resize them a gazillion times in EN, but now I can't do it.  I'm using version 7.6 on a 2018 macbook pro running Mojave 10.14.1.  When I click on the image to get a blue box around it, when I then move my mouse to the corner of the box to "grab" and resize it, all I get is a magnifying glass shape and the option to enlarge it to full-screen.  No option to manipulate the size in any other way.  😩