diff --git a/src/slic3r/GUI/Gizmos/GLGizmoFdmSupports.cpp b/src/slic3r/GUI/Gizmos/GLGizmoFdmSupports.cpp
index 7700e1eef7..557cdee8e3 100644
--- a/src/slic3r/GUI/Gizmos/GLGizmoFdmSupports.cpp
+++ b/src/slic3r/GUI/Gizmos/GLGizmoFdmSupports.cpp
@@ -434,18 +434,15 @@ void GLGizmoFdmSupports::apply_data_from_backend()
                     mesh_id++;
                     auto selector = selectors.find(mv->id().id);
                     if (selector != selectors.end()) {
-                        mv->supported_facets.set(selector->second.selector);
-                        m_triangle_selectors[mesh_id]->deserialize(mv->supported_facets.get_data(), true);
+                        m_triangle_selectors[mesh_id]->deserialize(selector->second.selector.serialize(), true);
                         m_triangle_selectors[mesh_id]->request_update_render_data();
                     }
                 }
             }
-
-            m_parent.post_event(SimpleEvent(EVT_GLCANVAS_SCHEDULE_BACKGROUND_PROCESS));
-            m_parent.set_as_dirty();
         }
-        this->waiting_for_autogenerated_supports = false;
     }
+    this->waiting_for_autogenerated_supports = false;
+    update_model_object();
 }
 
 void GLGizmoFdmSupports::update_model_object() const