From e51bc87ae041759462adfcb09dcb114b30713d72 Mon Sep 17 00:00:00 2001
From: Roy Nieterau <roy_nieterau@hotmail.com>
Date: Mon, 10 Sep 2018 17:15:35 +0200
Subject: [PATCH] Ignore _UNKNOWN_REF_NODE_

---
 colorbleed/maya/plugin.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/colorbleed/maya/plugin.py b/colorbleed/maya/plugin.py
index 21a074e874..5a06c5d9f2 100644
--- a/colorbleed/maya/plugin.py
+++ b/colorbleed/maya/plugin.py
@@ -95,6 +95,10 @@ class ReferenceLoader(api.Loader):
             if ref.rsplit(":", 1)[-1].startswith("sharedReferenceNode"):
                 continue
 
+            # Ignore _UNKNOWN_REF_NODE_ (PLN-160)
+            if ref.endswith("_UNKNOWN_REF_NODE_"):
+                continue
+
             references.add(ref)
 
         assert references, "No reference node found in container"