From ad80678bc2c49b2be70791881289f10e02a34ecc Mon Sep 17 00:00:00 2001 From: Jaime van Kessel Date: Wed, 5 Oct 2016 09:40:16 +0200 Subject: [PATCH] Gracefully handle case if no material was found CURA-2494 --- cura/QualityManager.py | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/cura/QualityManager.py b/cura/QualityManager.py index fb3a623466..4f57bc1a8d 100644 --- a/cura/QualityManager.py +++ b/cura/QualityManager.py @@ -159,7 +159,8 @@ class QualityManager: else: material_ids = set() for material_instance in material_containers: - material_ids.add(material_instance.getId()) + if material_instance is not None: + material_ids.add(material_instance.getId()) containers = UM.Settings.ContainerRegistry.getInstance().findInstanceContainers(**criteria)