The Overlapping stay is ineligable for points is my understanding with it being a stay outside of the US/CA
You must have stayed in the room and paid for it in full to receive Priority Club points. Only one room will be credited per member per night; however, at U.S. and Canadian hotels (except InterContinental), you can collect points or miles on all Eligible Charges for multiple hotel rooms (less than 10), provided those rooms are used in conjunction with your stay at the same hotel
Dave