From 9d156463b174b0b18b3aa2fe029bd9668fa306c6 Mon Sep 17 00:00:00 2001
From: enricoturri1966 <enricoturri@seznam.cz>
Date: Tue, 21 Mar 2023 14:43:14 +0100
Subject: [PATCH] Fixed crash when rotating a part after slicing with sla
 printer

---
 src/slic3r/GUI/GLCanvas3D.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/slic3r/GUI/GLCanvas3D.cpp b/src/slic3r/GUI/GLCanvas3D.cpp
index ea79739c40..743b4504fe 100644
--- a/src/slic3r/GUI/GLCanvas3D.cpp
+++ b/src/slic3r/GUI/GLCanvas3D.cpp
@@ -3766,7 +3766,7 @@ void GLCanvas3D::do_rotate(const std::string& snapshot_type)
                 model_object->instances[instance_idx]->set_offset(v->get_instance_offset());
 #endif // ENABLE_WORLD_COORDINATE
             }
-            else if (selection_mode == Selection::Volume) {
+            else if (selection_mode == Selection::Volume && volume_idx >= 0) {
 #if ENABLE_WORLD_COORDINATE
                 model_object->volumes[volume_idx]->set_transformation(v->get_volume_transformation());
 #else