Section Widget not displaying

Hello —

The section widgets are not displaying. They are simple — one is only text and one is a .jpg. I have tried the suggestions listed on this plug-in description page. I do not think it is related to my theme because this widget interface is acting strangely from the DASHBOARD / WIDGET set-up page. When I choose (click a box) where I want the widget to display, then hit save, it refreshes a moment, then shows itself to have unchecked its own boxes. It appears it isn’t actually saving and therefore not activating the widget.

Thanks.

https://www.ads-software.com/plugins/section-widget/