I’ve replied to your email, in response to receiving a link to your test site and a copy of the RapidWeaver project file.
I can confirm that this appears to be a bug in RapidWeaver, not specifically the theme. It seems that in any RapidWeaver theme where the RWAlwaysDisplayFullNavigation key in Theme.plist is set to NO (to generate a block or split navigation layout), RapidWeaver is failing to generate page navigation links on the individual blog entry pages.
I could replicate the same problem of missing page links in several themes, including Aqualicious, Birthday and Business. The suggested fix is to contact Realmac Software and await them to diagnose and fix the problem in the next update. In the meantime, it might be wise to revert back to an older version of RapidWeaver for the time being.
This is how navigation links should look and work on blog entries, when RapidWeaver 6 is working correctly: