Hard stubble not growing. Any ideas? Pictures

[HairRun]

I have some hard stubble on my scalp post-op. They seem to be make a small percent of total grafts but I'm still curious about how they'll end up. 

I don't remember if these are grafts that were implanted and never fell out, or just grow out early and never grew after, I wasn't keeping track. 

These stubbles are hard, like beard stubble. 

I searched this forum for 'stubble not growing' and found a bunch of threads, but none gave any conclusions. Trying in case someone can give some info. 

 

You can click on the pictures and then zoom in. 

[mister_25]

I would be very curious to know, I've seen some posts like this before without a conclusive answer.

What month post op are you?

[HairRun]

I just reached month 5, but I think these were here pretty early. Not sure when, at most week 6, at the earliest week 2 when I started feeling around my hair. 

[hairguy123]

I am close to 1 one year post up. I have the same issue. Most of these stubble hair is on my crown area