Scrivener Exporting...Doesn't Export?

I click Export → Files, and try to export to RTF, so that I can run it through Zotero, and then save as a docx. I had done this, and it was fine, but…

…now I watch the bar load for a little, it will get 1/4 of the way in, and just…stop. There are no images in what I’m trying to export, just text.

Any idea on where to start with troubleshooting? Help!

If you want to scan a finished manuscript with Zotero, it would be better to go File → Compile… then select Rich Text.