BuddyPress.org

You’re not really supplying any information of any detail, helping out with custom themes or WP themes is slightly outside this sites focus really and is very difficult regardless without good info.

I assume you meant to say you had ensured that wp footer hook was in each theme but why adding that should upset the themes original footer would be speculation other than to say that the theme sounds like it maybe breaks with WP conventions on template tags/hooks.