Capacity controls on Club Carlson awards?
I have had luck several times calling or emailing the hotel and reminding them of the corporate club carlson no award blackout date policy (with corresponding link). Then either they open it up online or usually they will open one up for you but they can't book a points stay, so you need to call club carlson, then have then call the hotel to confirm they will open a spot for you then it's done. Not a smooth process but it works. Note that there needs to be standard room availability per the policy.