Hello Cojam!
I am playing on 1000.
What happened was, i put the right burger in first and then when i walk towards the gate the game crashes.
BUT!
I was gonna make a video to demonstrate this, but when i did, i ended up finding the other burger first, and so i had both burgers, and the gate opened as it should.
But anyway, there is a still sweet Pinkshake gameplay video coming out of it, if you have any use for it...