--- a/net/minecraft/client/renderer/model/ItemModelGenerator.java
+++ b/net/minecraft/client/renderer/model/ItemModelGenerator.java
@@ -36,6 +36,7 @@
       map.put("particle", p_209579_2_.func_178300_b("particle") ? Either.left(p_209579_2_.func_228816_c_("particle")) : map.get("layer0"));
       BlockModel blockmodel = new BlockModel((ResourceLocation)null, list, map, false, p_209579_2_.func_230176_c_(), p_209579_2_.func_181682_g(), p_209579_2_.func_187966_f());
       blockmodel.field_178317_b = p_209579_2_.field_178317_b;
+      blockmodel.customData.copyFrom(p_209579_2_.customData);
       return blockmodel;
    }
 
