The upcoming events block appears to show bookings twice which is confusing our learners (see example below) if I have the seminar settings Calendar Options set to Course or Site.  They see this on the events block and think they have booked twice (which obviously they haven't).  The only way I can stop this from happening is by changing the Calendar Display settings to None.   Is it normal that this should happen or am I doing something wrong?  Just wondering what impact it may have if I set all my seminar events Calendar Options to None.  Any advice or guidance would be appreciated. 

Thanks