Hi there,
as you all know: adding a Printer via json files is much more powerful than using the built in custom FFF function. In the last versions of Cura you simply put the Printer .def.json file in the resources/definitions Folder and the Extruder.def.json in the Extruder Folder. Then in showed up in curas "add non Network Printer"-List. But with the new update that list Looks different and new copied Printers won't Show up. In fact if you edit an existing Printer like the CR10Mini to CR100Mini, it won't Show up either. I have the suspicion that there somewhere there is a list of what will be displayed in the "add non Network Printer"-List. Could be cause of the order by manufacturer, but as i said it won't even accept a CR100Mini even if the rest is 100% the same.
If you have any ideas, please let me know :)