From 2b7eca29af8a78fba91cf68c461fe2d946318868 Mon Sep 17 00:00:00 2001
From: Joey de l'Arago <joeydelarago@gmail.com>
Date: Wed, 22 Feb 2023 13:43:06 +0100
Subject: [PATCH] Continue if a printer has no active materials. This was
 causing a crash when loading the material combinations for a printer with two
 empty material slots.

CURA-10110
---
 cura/Machines/Models/CompatibleMachineModel.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/cura/Machines/Models/CompatibleMachineModel.py b/cura/Machines/Models/CompatibleMachineModel.py
index cf77a15085..40a3618b31 100644
--- a/cura/Machines/Models/CompatibleMachineModel.py
+++ b/cura/Machines/Models/CompatibleMachineModel.py
@@ -54,6 +54,8 @@ class CompatibleMachineModel(ListModel):
 
                 # initialize & add current active material:
                 for extruder in printer.extruders:
+                    if not extruder.activeMaterial:
+                        continue
                     materials = [_makeMaterial(
                         extruder.activeMaterial.brand, extruder.activeMaterial.name, extruder.activeMaterial.color)]
                     extruder_configs[extruder.getPosition()] = {