BuddyPress.org

I have not heard of this specific behavior before. Are you using a custom theme or the default parent/child theme that comes with BuddyPress? Have you deactivated all other plugins except BP to see if that makes a difference.

When having issues with BP, you need to boil everything down to the the lowest, common denominator–use the default BP theme and deactivate all other plugins except BP. If the issue goes away, then you most likely have a problem with a custom theme, a plugin conflict, or both.