I have this, quite severe. It’s been a massive problem for me most of my life because I didn’t even realise it was a thing until I read an article about it last year, I couldn’t understand why I simply couldn’t recognise people who were clearly very familiar with me (people I’ve seen every week in baby groups years on end that I ended up bumping into in town for example). It’s caused arguments with my oh. Someone would knock for him while he was out, he’d ask who was it was and I wouldn’t know. He’d ask me to describe them and I couldn’t even do that. He’d later find out who it was and it would be someone I’ve met a dozen times
This is me!
I can't easily pick out my children in school as everyone is in school uniform.
Same 
I’ve had this forever but never realised it was an actual thing until around a year ago.
I am continually offending people as I just don’t recognise them. Or if I see someone looking at me in town etc I’ll just do an awkward sort of smile and shuffle off, and it will turn out it’s someone I should really know.
People have called me cold and moody because I don’t know who they are and can’t do the right small talk or ask after their relatives etc but I really truly can’t help it.
The only person I ever told apart from DH thought it was made up. Said ‘oh yes I sometimes can’t put a face to a name, you just need to try harder’ but it’s so, so much more than that. So I never tell anyone but it bothers me so much.
DH has lots of regular clients for his business who I see on a regular basis, he’s often saying 'so and so saw you today and you ignored him’ etc but I just won’t have even registered them.
Feel for the rest of you who suffer badly with it but it’s nice to know I’m not alone.