Capacity was increased yesterday due to Orange County reducing outdoor mask mandates and reducing social distancing to 3 feet.
More Disney Park Reservations opened and more resort room opened up. You might want to double check that you are not still filtering for an old / expired discount.
Go to the Resorts view and make sure you don't have a special offer selected or to back and start again at the Specials page:
https://disneyworld.disney.go.com/special-offers/
Dave