Hi,
After installing, I uploaded a video and then went to my profile page. I got a PHP error regarding the for…each in bp-media-classes.php on line 251
I looked at the code and I took a guess that perhaps it was expecting there to be at least 1 picture. I didn’t have any at that time so I uploaded one and the issue went away.
I’m thinking this might be one of those issues you don’t notice when developing because you don’t expect someone to use it without any pictures! However, a fresh install will probably have this issue.