Hi John,
Thanks for reaching out, and I’m sorry you’re running into this issue!
It looks like we had a similar issue in a previous version of the plugin, but it should have been fixed in subsequent releases. Could you check to see if you are getting any JavaScript errors on that page by right-clicking the screen, selecting Inspect, and then looking in the console? If so, can you please send me a screenshot of what you see there?
Testing for conflicts with your theme and other plugins would be the next step to try to determine the source of the issue. If you’d prefer to do this in a testing environment, the WP Staging plugin will let you create a quick copy of your live site that you can use for testing.
Let me know how it goes!
Thanks,
Jennifer