Text boxes not showing up in preview; seems to have grouped itself?
I'm experiencing a strange issue with my text boxes. I first noticed it while previewing my project. In edit mode things look fine, but in preview some of my text boxes are not showing up. I discovered that the boxes that are not showing up in preview have a twirl-down arrow on them in the timeline, much like a group. (I've confirmed that they are not a group, or part of another group) There are no triggers associate with these text boxes, and they do not have states. I've never seen this before.
What is this? What's happening and how can I fix it?
Here are some screenshots of the timeline:
Text Box 17 works fine, textbox 16 disappears in preview. Notice the arrow to the left of Text Box 16.
Text Box 16 with its twirl-down arrow opened. The bullet and dash that you see in the text content is not visible in the actual textbox itself.