What is FaceScan in MyNBA 2k23 app?

so here is uh my nba 2k 23 app and i'm just trying to explore what exactly face scan is in this app that's the main feature um about why people try to download this app and try to use it um so that's basically it um so you can use facecam to present ico player in nba2k23 on ps5 ps4 xbox series x xbox one steam and nintendo switch using your mobile device so basically you're just taking a photo you're taking a selfie and then you can just upload that player in my nba game but the thing is like it was this app was just released and there are like some glitches and issues people can't log in even with their