Fixed update of the ObjectManipulation when "autocenter" is on

src/slic3r/GUI/Plater.cpp

@@ -2044,6 +2044,9 @@ void Plater::priv::update(unsigned int flags)
         this->restart_background_process(update_status);
     else
         this->schedule_background_process();
+
+    if (get_config("autocenter") == "1" && this->sidebar->obj_manipul()->IsShown())
+        this->sidebar->obj_manipul()->UpdateAndShow(true);
 }
 
 void Plater::priv::select_view(const std::string& direction)