I've downloaded the release candidate 1, and when exporting a screenplay to PDF the page numbers are displayed incorrectly in the top right. They seem to start at a random number (52) and then jump by increments of ten before adding in random symbols and eventually going into triple-digits. This bug has been present in previous versions of the beta. I've attached a PDF as an example.
I am currently using Release Candidate 4, and I am still encountering these page number issues with PDF export. An additional oddity is that text formatted in "Transition" using screenplay writing also comes out garbled; in my case it exports as a random series of capital letters and symbols.