BuddyPress.org

Well I just stuck this in to be absolutely sure:

/* Array Test */

echo is_array($bp_meta) ? 'Array' : 'not an Array';

I placed this just after $bp_meta is set and the test does come back indicating it’s an array so that is all that really matters.

I then placed this after the offending $bp_blog_signup_meta line:

print_r($bp_blog_signup_meta);

It looked fine. Data from both arrays were being properly merged.

So, I don’t think from my cursory investigation that this is the PHP5 array_merge() issue.

@Josswinn

A few questions:

1. Does this occur in all browsers or just some?
2. Do you have cookies disabled?
3. Which version of PHP are you running?
4. Which version of Apache?
5. Which version of WPMU?
6. Which version of BP?
7. Are there any other errors in your log files?