diff --git a/colorbleed/plugins/maya/publish/collect_look.py b/colorbleed/plugins/maya/publish/collect_look.py
index 19c63c7dda..d9f1b8067f 100644
--- a/colorbleed/plugins/maya/publish/collect_look.py
+++ b/colorbleed/plugins/maya/publish/collect_look.py
@@ -67,7 +67,7 @@ class CollectLook(pyblish.api.InstancePlugin):
     hosts = ["maya"]
 
     # Ignore specifically named sets (check with endswith)
-    IGNORE = ["out_SET", "controls_SET", "_INST"]
+    IGNORE = ["out_SET", "controls_SET", "_INST", "_CON"]
 
     def process(self, instance):
         """Collect the Look in the instance with the correct layer settings"""
diff --git a/colorbleed/plugins/maya/publish/validate_look_members_node_ids.py b/colorbleed/plugins/maya/publish/validate_look_members_node_ids.py
index 92c33bf9b5..9ecc8cd5fa 100644
--- a/colorbleed/plugins/maya/publish/validate_look_members_node_ids.py
+++ b/colorbleed/plugins/maya/publish/validate_look_members_node_ids.py
@@ -27,8 +27,8 @@ class ValidateLookMembers(pyblish.api.InstancePlugin):
 
         invalid_ids = self.get_invalid(instance)
         if invalid_ids:
-            raise RuntimeError("Members found without "
-                               "asset IDs: {0}".format(invalid_ids))
+            raise RuntimeError("Found invalid nodes.\nNo ID : "
+                               "{}".format(invalid_ids))
 
     @classmethod
     def get_invalid(cls, instance):
@@ -39,6 +39,6 @@ class ValidateLookMembers(pyblish.api.InstancePlugin):
             members.update([member['name'] for member in relation['members']])
 
         invalid = [m for m in members if not lib.get_id(m)]
-        if invalid:
-            raise RuntimeError("Found invalid nodes.\nNo ID : "
-                               "{}".format(invalid))
+
+        return invalid
+