Here’s something that happened to me today, resetting a slave focbox to default, no problem connecting via USB, CAN seemed to fail in forward mode.
Motor detection was not a problem but it was noiseless! No faults on the VESC tool console.
Switched motors to see if there was a problem there.
Finally I did the obvious and took the ESC back out of the enclosure and there it was the DRV has obvious signs of damage