Fix NavigationObstacle3D debug being affected by rotation and scale

Fixes NavigationObstacle3D debug being affected by rotation and scale.

scene/3d/navigation_obstacle_3d.cpp

@@ -148,10 +148,14 @@ void NavigationObstacle3D::_notification(int p_what) {
 				}
 #ifdef DEBUG_ENABLED
 				if (fake_agent_radius_debug_instance.is_valid() && radius > 0.0) {
-					RS::get_singleton()->instance_set_transform(fake_agent_radius_debug_instance, get_global_transform());
+					Transform3D debug_transform;
+					debug_transform.origin = get_global_position();
+					RS::get_singleton()->instance_set_transform(fake_agent_radius_debug_instance, debug_transform);
 				}
 				if (static_obstacle_debug_instance.is_valid() && get_vertices().size() > 0) {
-					RS::get_singleton()->instance_set_transform(static_obstacle_debug_instance, get_global_transform());
+					Transform3D debug_transform;
+					debug_transform.origin = get_global_position();
+					RS::get_singleton()->instance_set_transform(static_obstacle_debug_instance, debug_transform);
 				}
 #endif // DEBUG_ENABLED
 			}