You weren't kidding. It was really inconsistent last night. With the projector issues I'm surprised they haven't had an arm shutdown on them yet.It is incredibly disturbing how often the center screen/stargate goes down. I watched a live stream from last night and it's literally every other song - it was on until it was off for the Jungle Book sequence, then came back perfectly for Mulan, then was off for the Lion King sequence, then on again for BatB sequence and Coco sequence, then off for Princess and the Frog, then on for the finale. Bob probably thinks it's a feature - "Spontaneity! Come back tomorrow night and maybe it will be on for your favorite sequence!"
It will be interesting to see if any info on why it goes on and off so much during one show comes to light.