Brown hairs at week 3, problem?

One of my plants has early brown hairs, should I worry? What causes early brown hairs in flower? I haven’t changed anything with lighting or feeding, temps, RH etc. This one is from a clone but the other same clones don’t show early hairs.

could be this pheno. I wouldnt worry.

Can PM cause brown hairs?

Have you been touching them? That'll brown them

touching them stray pollen has it gotten very cold on them?

never heard of pm turning pistils brown maybe? do you have PM? i dont see any noticeably in the pics