Why does a background check that was done have gender: unknown.?

I just got the background check that was done on me. I was looking through it and there is a part that has gender: unknown. or:I just got the backgrou

I just got the background check that was done on me. I was looking through it and there is a part that has gender: unknown.

or:I just got the background check that was done on me. I was looking through it and there is a part that has gender: unknown.

Tags:background,