We tried the first time on Monday and somehow my son didn’t register as being “in the park” (looking back he said he didn’t think the Mickey turned green on entry at turnstiles. He’s 15 so who even knows. paying attention is not his strength.) We did everything right (well, apparently everything BUT that!).
We did go to guest services to see if there was anything they could do (I was extra pleasant and just explained what happened offering a screen shot and my son standing right next to me IN THE PARK! but they said there was nothing they could do to get us in a BG. But they did offer us FP for any other ride we’d like so we chose SDD (which was also super fun!)
Just a tip: make sure your teenagers pay attention! And also they said if that ever happens again, you should just get the BG for the people that are showing up IN the park at that moment and then go to guest services and they can add the other person if it’sa legit glitch.