I didn't get any email from DVC about the preview, probably because I didn't have a resort reservation. I did get one for the AP previews since we are AP. I was trying to get in for AP and then wondered when DVC previews were since I hadn't gotten anything, so I googled and it took me to a link to get in the active queue (which said nothing about needing a reservation), so I jumped in and after I got a confirmed res, abandoned my AP queue. I had no idea you had to have a res until I was looking on FB for an answer about whether you could have another park res for that day, and saw posts saying you had to have a res. So, that said, I won't be upset if it is canceled as it appears to be a glitch by Disney, but I do want to find out before my 24-hr window is past to cancel the flight I booked because I would be upset to pay for a flight down there and then preview is canceled. I will call MS tomorrow am to try to confirm if I'm good to go or not.