diff --git a/src/main/java/baritone/chunk/CachedChunk.java b/src/main/java/baritone/chunk/CachedChunk.java
index eb1882f8..418a015e 100644
--- a/src/main/java/baritone/chunk/CachedChunk.java
+++ b/src/main/java/baritone/chunk/CachedChunk.java
@@ -121,7 +121,10 @@ public final class CachedChunk implements IBlockTypeAccess {
         if (heightMap[internalPos] == y) {
             // we have this exact block, it's a surface block
             IBlockState state = ChunkPacker.stringToBlock(overview[internalPos]).getDefaultState();
-            //System.out.println("Saying that " + x + "," + y + "," + z + " is " + state);
+            /*System.out.println("Saying that " + x + "," + y + "," + z + " is " + state);
+            if (!Minecraft.getMinecraft().world.getBlockState(new BlockPos(x + this.x * 16, y, z + this.z * 16)).getBlock().equals(state.getBlock())) {
+                throw new IllegalStateException("failed " + Minecraft.getMinecraft().world.getBlockState(new BlockPos(x + this.x * 16, y, z + this.z * 16)).getBlock() + " " + state.getBlock() + " " + (x + this.x * 16) + " " + y + " " + (z + this.z * 16));
+            }*/
             return state;
         }
         PathingBlockType type = getType(x, y, z);
diff --git a/src/main/java/baritone/chunk/ChunkPacker.java b/src/main/java/baritone/chunk/ChunkPacker.java
index 3cd0b415..e020e67b 100644
--- a/src/main/java/baritone/chunk/ChunkPacker.java
+++ b/src/main/java/baritone/chunk/ChunkPacker.java
@@ -71,7 +71,7 @@ public final class ChunkPacker implements Helper {
             for (int x = 0; x < 16; x++) {
                 for (int y = 255; y >= 0; y--) {
                     int index = CachedChunk.getPositionIndex(x, y, z);
-                    if (!bitSet.get(index) && !bitSet.get(index + 1)) {
+                    if (bitSet.get(index) || bitSet.get(index + 1)) {
                         String name = blockToString(chunk.getBlockState(x, y, z).getBlock());
                         blockNames[z << 4 | x] = name;
                         continue outerLoop;