First off, excellent work! I couldn't find a suitable plugin that would show a widget on a category page. Tried them all, before I found this plugin. This works fantastic!
However, I came about a glitch:
- made the exception rule active, saved the options.
- edited the post en checked the option box on the side.
- now the widget shows up perfectly on that post.
However, when I edit that post again, the checkbox is magically unchecked. At first I didn't realize what happened when I saw the widget not showing up anymore.
But I can replicate it. It's not a dealbreaker, just have to remember to keep looking at those checkboxes on posts. But it shouldn't do that.