--- a/net/minecraft/world/level/chunk/ImposterProtoChunk.java
+++ b/net/minecraft/world/level/chunk/ImposterProtoChunk.java
@@ -56,6 +_,12 @@
     public BlockState getBlockState(BlockPos pos) {
         return this.wrapped.getBlockState(pos);
     }
+    // Paper start
+    @Override
+    public final BlockState getBlockState(final int x, final int y, final int z) {
+        return this.wrapped.getBlockStateFinal(x, y, z);
+    }
+    // Paper end
 
     @Override
     public FluidState getFluidState(BlockPos pos) {
