Burnt stigmas

Hi everyone!
I'm growing red hot cookies and blackberry moonrocks together. I feed and treat them same, but BB Moonrocks has healthy looking stigmas, red hot cookies seems to have burnt stigmas.
I wonder if its a temperature issue or what ? Before maximum temperature in my growbox was around 84-86 deg. Now maximum day temperature is 75 degrees.

my brother grew in a garage for years and during the summer that thing would get into the 90's maybe even 100's and I never saw anything like this before so I don't think its a temperature issue honestly. maybe someone else can chime in with more experience

It could just be an odd phenotypic expression. Pollination also makes that happen, not saying that's the case here but pollination does that too.

PopAndSonGrows said:

It could just be an odd phenotypic expression. Pollination also makes that happen, not saying that's the case here but pollination does that too.

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Hey man....if a female in flower is pollinated, that can happen, the stigs looking burned? What about if a plant is stressed and begins to herm? I'm just wondering because this could help a lot, like myself who doesn't always know the telltale signs of herming out? It's happened to me, I'm not a professional grower. I'm still learning.
And yes I realize that could be a stupid question. ‍.