I have just upgraded my multisite to WordPress 3.8 and BuddyPress 1.9 and installed Breadcrumbs Everywhere 1.5.
In the previous version I activated Breadcrumbs at the site level not network level, and all worked fine. The settings menu was under Buddypress in the admin panel.
I have done the same for the upgrade, but when I save the settings page I get the error 'You do not have sufficient permissions to access this page', even though I am the site admin.
The breadcrumb appear on the site with the new itemscope but without any separators.
If I try to activate the plugin at the network level, I don't get a settings menu.