We had nothing to print. Maybe it was based on when you ordered the tickets?? We got ours on July 2nd or 3rd. Maybe July, being in the higher priced range, has a different process? Who knows.
When I ordered, it showed a confirmation number and that was it.
When we got to the park, I couldn't remember where we were supposed to go, so I asked a group of security guards. I showed them my phone with the confirmation number and they pointed us to the ticket line.
The ticket line CM didn't blink when we went up. We handed over the passport and she got us our tickets.
It seemed like most around us were doing the same thing. I saw a few phones out with the confirmation email loaded up.
Who knows - maybe we did it all wrong, but it worked out for the best anyway!