I allowed Roon to do an unspecified update yesterday and the ripping function was still absent.
I spent several hours yesterday and more today attempting to configure my network so I could use ARC with my new car system. Uverse internet with Arris NVG589 router; tried changing to passthrough and adding a second router with no success.
I set everything back to default and strangely the Ripper now works. Sorry I can’t provide an explanation!