Okay question. How long has it been that you can't have 2 fastpasses for the same ride?
It seems new. very new. I'm not talking about waiting for your window to open. For example:
I get a Space mountain fastpass at 10:40am. It's valid from 2:30-3:30. I can get my next fastpass at 12:40am. Great, right? I even go and get an indy fastpass at 12:40 and everything's fine. I can even get another fastpass now after 2:10...
Well, I get back to Space Mountain and try to get another fastpass before getting in line, and I get one of those NOT A VALID FASTPASS TICKET things reading:
"You currently hold a valid FASTPASS® ticket for this attraction. Your next FASTPASS® ticket for this attraction will available after 4:40pm"
Note that the typo error is in the message, not something I did (will BE available). So it seems very new to me.
(If it's always been like that, which I'm pretty sure it hasn't, and I sound stupid...so be it I've never hit this thing in however many years we've had fastpass)
I can see why they'd want to do this, to keep the popular fastpasses, namely Space, still available perhaps. The thing that gets me is that extra hour you wait once your fastpass time finally comes even. It should at least open up again when your fastpass time starts or the moment the fastpass time ends(in my case at 2:30 or 3:30, not 4:40).