As long as you cancel the trip at least 31 days in advance, everything used will be part of your 2023 UY without the holding restrictions status.
If you cancel before July 31st, 2024, then any 2023 points can be banked. All 2024 UY points borrowed, no matter when you cancel have to be used by November 30th, 2024.
If you cancel less than 31 days in advance, all points, included the 2023 points, would now expire November 30th, 2024. They would be in holding, which means only eligible for trips booked 60 days or less from check in, but since your trip is already in October, the expiration is less than 60 days, so holding status won't matter.