Displaying PDF in iOS version shows blank pages and eventually a crash

I have a couple of PDFs ad I imported to my project, I think I did this on my Mac (99% sure) and then they synced over Dropbox. On my iPad (10.1.1) and Scrivener 1.0, when trying to read the PDF, after several pages, many start to show as blank (black) and then scrolling back and forth to get them to display, which sometimes works, will sometimes result in Scrivener crashing. Let me know if I can get some logs and I’ll try to reproduce again.