After spending several hours in the End City area, I decided to go back. When I threw the ender pearl into the bedrock-portal thing, I instantly was thrown into a dark limbo. The portal entering sound also began to play on a loud loop. It also began flickering between me being in the End void and suffocating inside a bedrock block (the suffocating bubbles appeared.) Eating chorus fruit and throwing pearls did not work, as well as standing still and waiting. I exited the world, and when I tried to load it again, the loading bar froze at 100%, but kept showing the trivia points. I did it several times in multiple copies of the world (I had an emergency backup) and everytime it did this same thing over and over again.