@Fran12096 There is no need to manually block dates in order to avoid same day changeovers. That is what the Prep Time setting is for. Set it to 1 night prep time and it will block one night between bookings.
( Note: The prep time wording is confusing, as it says "Block one night before and after each booking", which makes it sound like it would block 2 consecutive nights, but it doesn't- the "night after" booking A doubles up as the "night before" booking B.)