diff --git a/src/main/java/de/bixilon/minosoft/gui/rendering/models/baked/MultipartBakedModel.kt b/src/main/java/de/bixilon/minosoft/gui/rendering/models/baked/MultipartBakedModel.kt
index cad860ff8..fa6185110 100644
--- a/src/main/java/de/bixilon/minosoft/gui/rendering/models/baked/MultipartBakedModel.kt
+++ b/src/main/java/de/bixilon/minosoft/gui/rendering/models/baked/MultipartBakedModel.kt
@@ -24,11 +24,11 @@ import java.util.*
 
 class MultipartBakedModel(
     val models: Array<BakedBlockModel>,
-    val sizes: Array<Array<AbstractFaceProperties>>,
+    val sizes: Array<Array<AbstractFaceProperties>?>,
     val particleTexture: AbstractTexture?,
 ) : BakedBlockModel {
 
-    override fun getTouchingFaceProperties(random: Random, direction: Directions): Array<AbstractFaceProperties> {
+    override fun getTouchingFaceProperties(random: Random, direction: Directions): Array<AbstractFaceProperties>? {
         return sizes[direction.ordinal]
     }
 
diff --git a/src/main/java/de/bixilon/minosoft/gui/rendering/models/baked/WeightedBakedModel.kt b/src/main/java/de/bixilon/minosoft/gui/rendering/models/baked/WeightedBakedModel.kt
index fd0c83426..64cb7b81a 100644
--- a/src/main/java/de/bixilon/minosoft/gui/rendering/models/baked/WeightedBakedModel.kt
+++ b/src/main/java/de/bixilon/minosoft/gui/rendering/models/baked/WeightedBakedModel.kt
@@ -21,6 +21,7 @@ import de.bixilon.minosoft.gui.rendering.models.properties.AbstractFacePropertie
 import de.bixilon.minosoft.gui.rendering.system.base.texture.texture.AbstractTexture
 import de.bixilon.minosoft.gui.rendering.util.VecUtil
 import de.bixilon.minosoft.gui.rendering.world.mesh.WorldMesh
+import de.bixilon.minosoft.util.Broken
 import java.util.*
 import kotlin.math.abs
 
@@ -38,8 +39,8 @@ class WeightedBakedModel(
         this.totalWeight = totalWeight
     }
 
-    override fun getTouchingFaceProperties(random: Random, direction: Directions): Array<AbstractFaceProperties> {
-        return getModel(random)?.getTouchingFaceProperties(random, direction) ?: arrayOf()
+    override fun getTouchingFaceProperties(random: Random, direction: Directions): Array<AbstractFaceProperties>? {
+        return getModel(random)?.getTouchingFaceProperties(random, direction)
     }
 
     private fun getModel(random: Random): BakedBlockModel? {
@@ -55,7 +56,7 @@ class WeightedBakedModel(
             }
         }
 
-        throw IllegalStateException("Could not find a model: This should never happen!")
+        Broken("Could not find a model: This should never happen!")
     }
 
     override fun singleRender(position: Vec3i, mesh: WorldMesh, random: Random, blockState: BlockState, neighbours: Array<BlockState?>, light: ByteArray, tints: IntArray?): Boolean {
diff --git a/src/main/java/de/bixilon/minosoft/gui/rendering/models/unbaked/block/UnbakedMultipartModel.kt b/src/main/java/de/bixilon/minosoft/gui/rendering/models/unbaked/block/UnbakedMultipartModel.kt
index fda5391c6..6260c3607 100644
--- a/src/main/java/de/bixilon/minosoft/gui/rendering/models/unbaked/block/UnbakedMultipartModel.kt
+++ b/src/main/java/de/bixilon/minosoft/gui/rendering/models/unbaked/block/UnbakedMultipartModel.kt
@@ -50,11 +50,15 @@ class UnbakedMultipartModel(
         }
         val finalFaces: Array<Array<AbstractFaceProperties>?> = arrayOfNulls(Directions.SIZE)
         for (index in 0 until Directions.SIZE) {
-            finalFaces[index] = sizes[index].toTypedArray()
+            val faces = sizes[index]
+            if (faces.isEmpty()) {
+                continue
+            }
+            finalFaces[index] = faces.toTypedArray()
         }
 
 
-        return MultipartBakedModel(baked.unsafeCast(), finalFaces.unsafeCast(), particleTexture)
+        return MultipartBakedModel(baked.unsafeCast(), finalFaces, particleTexture)
     }
 
     private companion object {