The tickets on Apple Wallet do not use a barcode, they are NFC (Near Field Communication) tickets. So even though the tickets would have a barcode on TicketMaster/OneBuffalo apps, they don't once you save them to wallet. But they do show the little radio icon on the lower right corner and say 'Hold Near Reader', meaning they can be scanned with NFC. That's how you get into the gate. Seems like a lot of folks are getting thrown for a loop just because there isn't a barcode.