If a repair install did not work, did you:
toggle cameras off and on in the UEFI
1. Shut down your Surface and wait 10 seconds.
2. Press and hold the volume-up button on your Surface and at the same
time, press and release the power button.
3. The Microsoft or Surface logo appears on your screen. Continue to
hold the volume-up button. Release the button once the UEFI screen appears.
and if that did not work, you can try the downloadable recovery image
https://support.microsoft.com/en-us/surfacerecoveryimage
if still an issue after that, if it were me, I'd pursue an exchange as Microsoft
has not even acknowledge that this is a bug.
I'm an unpaid volunteer and do not work for Microsoft. If you want background
on what a Microsoft MVP is, see https://mvp.microsoft.com/en-us/Overview and for
Volunteer Moderators see
https://answers.microsoft.com/en-us/page/faq#faqWhosWho1