This is definitely still an issue with this Points Eligible bookings. I literally just experienced it a few minutes ago. I had checked in two days at a Holiday Inn through the normal IHG website. I had to add another three days and decided to try the Chase portal to trigger the $250 credit on a Points Eligible booking at this hotel. The price delta was like $35-50 (forgot). This is great as another booking I was considering had over a $160 difference for a week booking.

The hotel said they can check me out and check me in on the checkout day as long as it was after the overnight audit was finished around 6am and before checkout at 11am. That way I could keep the same room.

Thanks to this thread, I asked them to make sure my member number was attached to the new reservation. Chase is still not sending it over properly as she asked me for my rewards number.

The points eligible booking seems to be working as I received my welcome amenity points by the time I got to the room

I also suspect the Marriott number wasn't on the reservation at check in bc Chase still hasn't figured out how to send the member number every time as of two days ago. It's not that person's fault as I also would have assumed the member number had been sent along as Chase claims it would be. (Had I not read this thread).

I agree with taking it up with Chase. I am/was prepared for a fight as I took screenshots of every step of the booking: showing the points eligible, then clicking on it so the description popped up, then me entering the member number and so on until the booking confirmed page popped up.

it's stupid we have to take these steps but thanks to this thread we can make steps to ensure less aggravation later.