Multinetwork Buddypress issue on main network

I have a multi network install of wordpress with 4 networks. Each network has a community theme that is made for buddypress. The main netowrk and a second network do not have BP-Multinetork running and should be sharing the same set of groups, members, etc. However, the main network's pages are experiencing redirect errors. "This page is redirecting in a way that will never complete." This was previously working, but something broke it. Perhaps upgrading to 3.5? I don't know. I know that I created many groups and members on the main network that no longer show due to the redirect error, timing out the connection; yet show on a second network when BP_multi-network is inactive.