fixed #50

build.gradle

@@ -2,7 +2,7 @@ apply plugin: "net.minecraftforge.gradle.forge"
 apply plugin: 'kotlin'
 
 group = 'com.github.octarine-noise'
-version = "2.0.5"
+version = "2.0.6"
 archivesBaseName = rootProject.name + '-MC1.9'
 
 buildscript {

src/main/kotlin/mods/octarinecore/client/resource/ModelDataInspector.kt

@@ -42,7 +42,8 @@ abstract class ModelDataInspector {
         onAfterModelLoad()
 
         stateMappings.forEach { mapping ->
-            stateModels[mapping.value]?.let { processModelDefinition(mapping.key, mapping.value, it) }
+            if (mapping.key.block != null)
+                stateModels[mapping.value]?.let { processModelDefinition(mapping.key, mapping.value, it) }
         }
     }