Yes I can confirm this, it goes and comes but it's not a worry, it's still in their system.

I think what happens is they do some maintenance or something and it disappears, both from our reservations and from the booking engine (if you try to do a booking where Dubai Connect should be offered you will see that it's not available). But it's not a worry, all the info you entered is still there and once the system is back up and running you'll be able to see it again and everything will be fine