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Cura 3.2.1 & hardcore print cores

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I'm having an issue with the new cura and 3d solex nozzles. I can not select the hardcore option in the drop down menu when choosing the print cores. The print manger shows the there is a hardcore in the slot. Because i can't choose the hardcore it will not start printing. How do i fix this thanks its becoming frustrating. Thanks

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I can force the printer to print by going to the web interface (click "go to print jobs'), click "show details" and select "override configuration and start print". But I can't believe this is the intended way.


Also, my UM3 displays "Material Ultimaker PLA Silver Metallic is not recommended to be used in PrintCore HardCore." I presume this is linked with the problem the OP mentions?

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