You sound just like an experienced technology support troubleshooter! I know because I am a veteran of 20 years in tech support of one kind or another
Nope, it's not the cable that came with the pedal. No USB cable was included in the box. I bought it used off Reverb. What was in the box was the 1/4 to 1/8 audio cable. I had to go fishing through my box of junk cables to find a matching USB to fit the pedal and my Mac. I had exactly one such cable. Perhaps it doesn't work? How often does that happen, though. It doesn't appear to be abused or over used.
I think maybe I'm just experiencing a bug in beta software on a new macOS version.