Ok so while this seems to be a good explanation, I created a world in 20w20b and updated to 20w21a, and the Temple spawning still worked.
I have had Minecraft for a while, then this problem happened: java.lang.IllegalStateException: failed to create a child event loop when I try to play a world. Any help?
Ok so while this seems to be a good explanation, I created a world in 20w20b and updated to 20w21a, and the Temple spawning still worked.