From a5b202aa1d28c0c3280f42f63b9af0bc394d4ca9 Mon Sep 17 00:00:00 2001
From: Enrico Turri <enricoturri@seznam.cz>
Date: Mon, 18 Mar 2019 12:59:52 +0100
Subject: [PATCH] Fix of #1955 and #1874

---
 src/slic3r/GUI/GUI_Preview.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/slic3r/GUI/GUI_Preview.cpp b/src/slic3r/GUI/GUI_Preview.cpp
index 2211e8d7d..69f255be1 100644
--- a/src/slic3r/GUI/GUI_Preview.cpp
+++ b/src/slic3r/GUI/GUI_Preview.cpp
@@ -365,6 +365,9 @@ void Preview::load_print()
 
 void Preview::reload_print(bool force, bool keep_volumes)
 {
+    if (!IsShown() && !force)
+        return;
+
     if (!keep_volumes)
     {
         m_canvas->reset_volumes();
@@ -372,9 +375,6 @@ void Preview::reload_print(bool force, bool keep_volumes)
         m_loaded = false;
     }
 
-    if (!IsShown() && !force)
-        return;
-
     load_print();
 }