Yes, they won’t let you on if you are late for your boarding group. I got spot 27 in the 7 am booking, which was estimated at 11:40 am. We still had to drive there, but I thought that time would work, since i thought I had until 12:40 to get there. Well, the boarding group got called early, at 9:45. We got there at 12:30 and went straight to Tron. The first person that scanned us into the Tron area was fine, they scanned and let us through. We get up to the entrance and the scanner turned blue. They said we were late. I told them we had to drive there and the guy was quite rude and said well you had an hours notice. The lady then said we are being very strict with boarding groups. This is ridiculous when you have no say in what time your boarding group is going to be. Then to make matters worse i couldn’t even try for the 1:00 groups as it was showing that I already booked a group that day. Needless to say, my family and I were not impressed, especially when for Guardians they have been very flexible with everyone’s boarding times. I could see it with Tron if people were trying to hold out for a night spot (though if they’re only open until 6:00 for the soft opening that’s a mute point), but it’s crazy that they don’t give you time to get there. If they’re going that route, they might as well make it be like the 1:00 slot and have you have to be at the park first.