Hey there, folks.
We're aware that some NBA 2K17 players are encountering an issue where -after they've scanned their face with MyNBA2K17- their MyPLAYER character's face becomes solid black and loses all detail. Thankfully, we have a workaround, and it doesn't require you re-scanning your face.
Go back to the "Edit MyPLAYER" menu, re-select "Scan Face."
This will re-build your MyPLAYER's face with the scan you provided.