2.1 beta 2.
Posts that have the <!-- more --> tag that produces a Read more or whatever message have been working OK without membership levels but once I set up some levels, and in the Edit Options I set a Masked download URL, readers who click on the Read more link get a blank screen.
This is because the link has the download mask inserted between the root URL and the oage.
So if the download protection URL is http://mysite.com/somedownload/ and a post is made that is http://mysite.com/2011/08/myslug the Read more link becomes http://mysite.com/somedownload/2011/08/myslug/#more-123
The affected membership level has a Download content rule enabled in the Positive rules. I removed this and tested it and it works. I checked with a user that does not have the Download content in and that still misbehaves.
It seems as if an incorrect $variable is being added into the URL.