social theme open access. header is preventing browsing the site

I have asked this question in another thread but it is not being answered. Only answer i got was to switch to 1.4. After i switched i found more bugs in the 1.4 version which I stated but no follow up replies were provided.

https://premium.wpmudev.org/forums/topic/buddypress-social-theme-open-to-anyone

could someone please advise ow I can keep the main header and yet allow visitors to browse other pages without logging in.