Membership is supposed to send new registered users to page 'Welcome', but doesn't

Membership is supposed to send new registered users to 'Welcome', but doesn't. Instead, the member remains on 'become-a-member' with info about subscribing to a different level of membership. As there is only one level, this is pointless and irritating!

I do also have BBPress and BuddyPress installed and maybe this is causing conflicting issues?

Anyway, the site is here: http://parmaimagecollection.com/

I have been fooling with this for a few days, so input would be most welcome.