In our case, we had Palo Brunch reservations for Palo Brunch on Nassau Day. When I noticed they had disappeared, I was uncertain whether there had been a decision not to offer Palo Brunch on that day (after all, it is a port day). Disney places so much emphasis on the information its customers can get on the website and app, I think they should post a general notice to the effect of: "We're experiencing technical problems. Please don't worry if you can't view some reservations you've already made. We'll fix the problem soon." And then deliver on that promise. Soon means a lot less than a week.