Update 09/21: Disney is no longer showing on the Freedom portal. In addition according to Miles To The Magic this change has been instigated by Chase rather than being lead by their booking partner or Disney.
According to multiple data points it’s no longer possible to use Chase Ultimate Rewards points to book Disney World packages. Previously it was possible to book any package that Disney offered directly by calling into the travel and cruise department, it seems that on or around September 14th Chase stopped accepting these bookings. It doesn’t seem to be specific to Disney World either, as Disney Land packages/tickets are also not bookable.
For some reason tickets are showing in the Chase Freedom portal and not the Chase Sapphire Reserve portal, so it’s possible further updates will be made. I suspect this is due to Chase changing over to all bookings going through Expedia. Given that Chase issues the co-branded Disney card you’d think they would be in the best position to service Disney customers. We’ve reached out to Chase for an official comment.
Hat tip to  SouthFayetteFan
