In the last month or so I started to have audio dropouts, and MSFS really doesn’t like it… will sometimes crash when it switches back and at best a very long stutter.
Anyway I finally called up HP yesterday and after a few basic questions about being up to date with drivers and bios the support agent just asked where I wanted the cable to be sent. Was easy and he was polite so perhaps you jut got unlucky (or I got lucky!). It’s on backorder but hopefully they are pumping them out at a decent rate!
You are the first person I’ve heard of with any issue at all with the new cable, odd that you can’t use the USB-C port on the mobo… on my x570 the mobo USB-C works even with the v1 cable (other than the recent audio drop outs but was fine for a long time before that). Are you up to date with a bios compiled on AGESA 1.2.0.3 B as that included AMD’s “final” fix for USB connectivity?
Have you come across anyone else with the same problem with the new cable? You definitely got the new revision with a larger brick right? (Part number is: M52188-001 Part description is: SPS-CA ACTIVE 6M BLACK /W SWITCH).