[repolfx]

There's only been one case of being unable to recognise black faces that I know of, and it was shown later to be due to the lighting conditions the guy was using leading to very low contrast imagery. The same problem was replicated with white faces: there was no racism anywhere as you would expect given that unconscious bias hasn't been shown to exist at all (the studies that claim to show it have all collapsed).

If you asked the developers of the facial recognition library, "does your software have problems with very low contrast conditions" they'd surely have answered yes. Fully conscious of the issue but, that's software. It's hard to get everything right 100% of the time.

[bsanr2]

There have actually been several cases of recognition and classification issues, and it is an ongoing problem.