From a7425ec22963537799fffb1f5ede80318f2e6971 Mon Sep 17 00:00:00 2001
From: Vojtech Kral <vojtech@kral.hk>
Date: Wed, 10 Oct 2018 14:43:07 +0200
Subject: [PATCH] Plater: Fix in load_model_objects

---
 src/slic3r/GUI/Plater.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/slic3r/GUI/Plater.cpp b/src/slic3r/GUI/Plater.cpp
index e6c55e3a2..3af670d59 100644
--- a/src/slic3r/GUI/Plater.cpp
+++ b/src/slic3r/GUI/Plater.cpp
@@ -1135,6 +1135,9 @@ std::vector<size_t> Plater::priv::load_model_objects(const ModelObjectPtrs &mode
                 instance->set_scaling_factor(inverse);
             }
         }
+
+        print.auto_assign_extruders(object);
+        print.add_model_object(object);
     }
 
     // if user turned autocentering off, automatic arranging would disappoint them