--- a/net/minecraft/server/WorldUpgrader.java
+++ b/net/minecraft/server/WorldUpgrader.java
@@ -123,7 +123,7 @@
int j = IChunkLoader.a(nbttagcompound);
NBTTagCompound nbttagcompound1 = ichunkloader.getChunkData(dimensionmanager2, () -> {
return this.q;
- }, nbttagcompound);
+ }, nbttagcompound, chunkcoordintpair, null); // CraftBukkit
NBTTagCompound nbttagcompound2 = nbttagcompound1.getCompound("Level");
ChunkCoordIntPair chunkcoordintpair1 = new ChunkCoordIntPair(nbttagcompound2.getInt("xPos"), nbttagcompound2.getInt("zPos"));