I can't get any USB 3 / USB C devices to mount in a Win10 VM. I'm not sure if this started with upgrade to Fusion 11 and/or Catalina (MacBook Pro 2018)???
I've read several articles with similar issues and no real fix. When I plug in a USB 3 or C device it prompts to connect to Windows, It tries to mount, "bonks", several times, them the USB3 controlled shows (yellow !). I've tried uninstalling and reinstalling the controller/driver, all of them, with no luck.
Any suggestions?