Blocking time with Calendar

Hi
My site (killarneycharters.ca) has a specific period for Booking - May 15 - Oct. 15 each year.
Calendar only allows booking to July 5, even though the calendar is set to allow bookings until Oct 15.
Also, when I extend the bookable block period from May 15, 2027 to Oct 15, 2027, it is grayed out on the booking calendar pop up
So, Im not sure why the calendar is not displaying the bookable periods (May 15-Oct 15, 2026) and May 15-Oct 15, 2027)
I don't see a setting for a max. future date for allowable booking

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