if you were in the process of drying or very close to you probly have high humidity issuses and that led to botaris, which is bud mould, it looks grey or dirty white, its grows like compact tightly webbed nest inside buds between buds and all dark damp spots. this normally happends when people bag there shit too quick and the little bit of stem humidity escapses to form botaris.
DO NOT SMOKE MOLDY BUD. MOLD LOVES DARK DAMP WARM PLACES AND YOUR LUNGS IS PERFECT FOR THEM,
YOU MIGHT THINK BUT I BURN THE MOLD OFF AS I SMOKE, BUT THE MOLD SPORES WILL END UP IN YOUR LUNGS ONE WAY OR ANOTHER.
MOLD CAN SET OFF RESPORTORY PROBLEMS AND EVEN CAUSE COMA.
BE VERY CAREFUL JUST HANDELING YOUR BUD. sorry all that work is reduced to nothing but add it to your bag of life experience. take care.