so I have a corrupted world in Minecraft 1.12.2, with mods, and I tried going into it after I had fixed the level.dat, and everything seemed fine except when I got back to my house the blocks of the (modded) trees around it had been replaced with blocks from other mods. The trees I noticed were twilight oaks, their trunks had been replaced with cobalt blocks from extended items and ores mod, their leaves were replaced with amethyst blocks from Also from extended items and ores mod. I did not get to see any more before Minecraft crashed, and I can’t go into the world without it crashing. I did some research and I think the ids might be corrupt but I’m not sure. I can fix everything with worldedit, but can someone at least tell me how to fix the crashing? Please help.