Smug God

So, I've made it to the Pyramid. Defeated the Hippowdon, and went into the puzzle room where you utilize the MC, Ren and Aelita to activate the different plates to reach the end. I got them all close to the end and decided to head through first on the Main Character, where I encountered this message. After I got this message, I could no longer use the A menu to switch between Ren or Aelita. I tried to save and relog, but that only trapped me here. Another smaller bug I found was this tile, which allows you to pass over it without the bridge being present. But