diff --git a/src/slic3r/GUI/Gizmos/GLGizmoMove.cpp b/src/slic3r/GUI/Gizmos/GLGizmoMove.cpp
index f586d312d8..d19168822e 100644
--- a/src/slic3r/GUI/Gizmos/GLGizmoMove.cpp
+++ b/src/slic3r/GUI/Gizmos/GLGizmoMove.cpp
@@ -76,13 +76,17 @@ void GLGizmoMove3D::on_start_dragging()
 #if ENABLE_WORLD_COORDINATE
         const BoundingBoxf3 box = get_selection_box();
         Vec3d center;
-        if (wxGetApp().obj_manipul()->get_world_coordinates())
+        if (wxGetApp().obj_manipul()->get_world_coordinates()) {
             center = box.center();
+            m_starting_drag_position = center + m_grabbers[m_hover_id].center;
+        }
         else {
             const Selection& selection = m_parent.get_selection();
-            center = selection.get_volume(*selection.get_volume_idxs().begin())->get_instance_transformation().get_matrix() * box.center();
+            const GLVolume& v = *selection.get_volume(*selection.get_volume_idxs().begin());
+            const Transform3d trafo = Geometry::assemble_transform(Vec3d::Zero(), v.get_instance_rotation());
+            center = v.get_instance_offset() + trafo * box.center();
+            m_starting_drag_position = center + trafo * m_grabbers[m_hover_id].center;
         }
-        m_starting_drag_position = center + m_grabbers[m_hover_id].center;
         m_starting_box_center = center;
         m_starting_box_bottom_center = center;
         m_starting_box_bottom_center.z() = box.min.z();
diff --git a/src/slic3r/GUI/Selection.cpp b/src/slic3r/GUI/Selection.cpp
index ae960349df..e6181e0e90 100644
--- a/src/slic3r/GUI/Selection.cpp
+++ b/src/slic3r/GUI/Selection.cpp
@@ -728,7 +728,7 @@ void Selection::translate(const Vec3d& displacement, bool local)
             if (is_from_fully_selected_instance(i)) {
                 if (local) {
                     const VolumeCache& volume_data = m_cache.volumes_data[i];
-                    const Vec3d world_displacement = (volume_data.get_instance_rotation_matrix() * volume_data.get_instance_scale_matrix() * volume_data.get_instance_mirror_matrix()) * displacement;
+                    const Vec3d world_displacement = (volume_data.get_instance_rotation_matrix() * volume_data.get_instance_mirror_matrix()) * displacement;
                     v.set_instance_offset(volume_data.get_instance_position() + world_displacement);
                 }
                 else