So just got this up and running yesterday and today my wife used it for the first time. She did what she needed to do, but we may have come across a bug. I don’t know. She had to take a 72 page PDF and break it out into multiple smaller PDFs. While she was doing that, multiple pages in the preview window would keep going blank/white. Not sure if you’re aware of something like that, if not I can try to reproduce and grab logs and post them on github.