I made a glossary. I set it to be global. The glossary highlights all the glossary-words throughout my entire site. This part works well. But, for some reason, in some courses, when you click on the glossary word, the popup window comes up, but there isn't anything in the window.
Now mind you, in some courses, the glossary entries work fine. You click on the word, and a nice little defn pops up. In other courses, you click on the same word, and a window pops up but there isn't anything in the window.
In that attached screenshot, you can see the grayed out words, and the popup window that comes up when I click on one of them.