BuddyPress.org

I’m having the same issue with WPMU 2.9.1.1 & BP 1.1.3. I’m looking into a fix. I will let you know if I figure it out.

Well, for those people who can’t/don’t want to update to the new version of BP, here’s the fix.

Make sure if you have a custom edit profile or registration template that you put brackets at the end of any multiselectbox field name that you’re using.

So, the following:

<select name="<?php bp_the_profile_field_input_name() ?>" id="<?php bp_the_profile_field_input_name() ?>" multiple="multiple">

would become:

<select name="<?php bp_the_profile_field_input_name() ?>[]" id="<?php bp_the_profile_field_input_name() ?>" multiple="multiple">

Then, you need to edit lines 400-421 of the BuddyPress core file: /buddypress/bp-xprofile/bp-xprofile-templatetags.php. It starts with case 'selectbox': case 'multiselectbox': and ends with break;

Replace lines 400-421 with code from here.

Note: this isn’t a very upgrade friendly way to deal with it, but if you’re stuck with BuddyPress 1.1.3 because of some custom written components, it’s the way to make it work.

Glad to help.