Isolated Brown trichoms on one calyx

I've got the same problem, I think it's too much humidity at night and cold at night. I've just ordered an extra tent and lights since my electric heater and my... Moonrooks auto from Divine seeds. So it should be fine. But it's probably drying out if you've accidentally nipped a bit too close. I'm from Denmark, and we're lucky with the weather starting tomorrow, 10 days with more than 18 degrees and my night temp is 3t8 degrees.

Agreed with mouse, those fibers are too thin to be trichome stalks without heads, looks more like fungal hyphae spreading out. If possible, harvest as soon as possible, cut those parts out and try to keep it around 50% relative humidity while drying.