diff --git a/grimoire/arthur.py b/grimoire/arthur.py
index <HASH>..<HASH> 100755
--- a/grimoire/arthur.py
+++ b/grimoire/arthur.py
@@ -86,7 +86,9 @@ def feed_backend(url, clean, fetch_cache, backend_name, backend_params,
         if backend:
             logging.error("Error feeding ocean from %s (%s): %s" %
                           (backend_name, backend.origin, ex))
-            traceback.print_exc()
+            # don't propagete ... it makes blackbird fails
+            # TODO: manage it in p2o
+            # traceback.print_exc()
         else:
             logging.error("Error feeding ocean %s" % ex)
[arthur] Don't propogate exception not managed yet in p2o. Makes cauldron.io fails.