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@@ -141,7 +141,7 @@ class BaseMaterialsModel(ListModel):
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nozzle_name = extruder_stack.variant.getName()
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materials = ContainerTree.getInstance().machines[global_stack.definition.getId()].variants[nozzle_name].materials
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approximate_material_diameter = extruder_stack.getApproximateMaterialDiameter()
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- self._available_materials = {key: material for key, material in materials.items() if float(material.container.getMetaDataEntry("approximate_diameter")) == approximate_material_diameter}
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+ self._available_materials = {key: material for key, material in materials.items() if float(material.container.getMetaDataEntry("approximate_diameter", -1)) == approximate_material_diameter}
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## This method is used by all material models in the beginning of the
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# _update() method in order to prevent errors. It's the same in all models
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Ghostkeeper