A picture is worth a thousand words, so I've attached a picture below. See if you can figure out my problem:

See the long blank after "O my soul," and "compassion;"? That's the problem. I let Proclaim enter the text on its own from my Logos installation. Text is also missing when I select "Fully formatted," although what's missing is a little different.
The missing text DOES appear on the slide, but this makes editing a pain.