BuddyPress Group Calendars are showing events from all groups

Events from this group calendar: http://impact-hubbli-com.jono39.staging.wpengine.com/groups/impact-plus/calendar/

are showing up on this group calendar: http://pannahillschool-hubbli-com.jono39.staging.wpengine.com/groups/rock-band/calendar/

That pretty much defeats the purpose...

How can I ensure that my group calendars remain segregated?