If you transfered points, you can't bank them. They also might be in holding. Once, Disney messed my points up when they combined my reservations and put a bunch of points in holding.
I bought a resale in June that had 104 points banked from 2020, but I booked a reservation for January 2022 that uses 120 points.
Already did. It definitely used the banked points.Go "modify" that reservation, and just change the screen where it asks which contract to pull from. It should make sure it pulls the banked points. If you canceled or modified, those banked points can just be floating around.
If that doesn't work, just add or delete a person. It should take the floating banked points.