Having the same issue. Once I upgraded, the system states that the “Link” component doesn’t have a page associated with it when it definitely does. Tried re-saving and creating a new page but no success.
Already tried deactivating plugins including disabling Invite Anyone plugin but still experiencing the issue.
I’m running latest version of WP and BP on multisite and BP is running on the main blog. I am not allowing users to register sites on my network.