From a3324d3e50114aa16c48be7ec6b939c9315f4dde Mon Sep 17 00:00:00 2001
From: enricoturri1966 <enricoturri@seznam.cz>
Date: Mon, 23 Jan 2023 08:17:18 +0100
Subject: [PATCH] Fixed crash when changing printer while Hollow gizmo is open

---
 src/slic3r/GUI/GLCanvas3D.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/slic3r/GUI/GLCanvas3D.cpp b/src/slic3r/GUI/GLCanvas3D.cpp
index 41bd3a5c5..53df78bf2 100644
--- a/src/slic3r/GUI/GLCanvas3D.cpp
+++ b/src/slic3r/GUI/GLCanvas3D.cpp
@@ -2004,7 +2004,12 @@ void GLCanvas3D::reload_scene(bool refresh_immediately, bool force_full_scene_re
     else
         m_selection.volumes_changed(map_glvolume_old_to_new);
 
-    m_gizmos.update_data();
+    // The current gizmo may be not supported by the current printer technology
+    // after the user changes printer.
+    // Check if it is still activable before to call update_data() method.
+    const GLGizmoBase* gizmo = m_gizmos.get_current();
+    if (gizmo != nullptr && gizmo->is_activable())
+        m_gizmos.update_data();
     m_gizmos.refresh_on_off_state();
 
     // Update the toolbar