Yes @Artur0
I also learned the hard way that the minimum stay only applies to bookings starting on that day. The calendar looks only at the check-in day of 30 May, sees a 5-day minimum and allows a 5-day booking. Many of us initially assume that the days we select would have to form part of a booking of at least that length, but no ...
You'll have to manage the issue by creating no check-in/out days and adaptimg the rule as you get bookings.