I sadly died on my hardcore world to a piglin brute in the nether. After death I was put at world spawn in spectator mode, but for some reason the terrain, mobs and entire world was not loading. I relogged many times and yet nothing has changed. I was however in a modded version, optifine, however even after changing to vanilla I still cannot view anything in my world even after copying the world data. Its a shame that I can't view my world.