We have all our \"block before\" options set to 0. However it appears as though, recently, the system is engaging that for blocks of time over an hour. 

For instance, if we have an existing Appt from 11-12.... I can book at the 10 and 1030 slots using 30 minute appt times. When I go to 1hr appt times.. the 1030 slot is now greyed (makes sense as an hour would run into the next appt)....HOWEVER... I am prevented from placing 1hr appt at the 10 slot...despite there being a full hour of availability, because the 1030 slot is \"greyed\". The 11-12 appt has NO pre or post book settings. Unsure why the 1030 slot is being greyed when we select 1hr or more. Unsure why we are being blocked. The google connection works correctly (it blocks the right time on google cal)... and the emails all state their reservations correctly, IE the 11-12 appt setter gets an email saying 11-12 with no mention of a preblock at 1030. 

This is just preventing our users from picking available timeslots right now. 

Thanks for any assistance anyone can provide!