Hi!
Mold is present everywere in nature and the only way is to prevent it.
Be sure that you remove every piece of it from the plant.
Try to gently move all the buds to see if the part in shadow is affected.
Try to shake it as less as possible, so the spores will not disperse over the plant.
After that, to prevent further mold:
try to keep the temperature a little higher (rh% will be reduced)
enough air extraction
enough air movement inside the room. Some people use summer fun, some pc fun, etc. just nothing too powerfull all the time in front of the leaves or you will burn them.
Usually the best is to put them so the air will be pushed towards the upper part. This because humidity is heavy and stay low, plus lamp heat can be stressfull if pointed to the leaves, causing an imbalance in temperature between canopy and soil.
It seems to me, that air movement is the problem you have.
If there is not enough air movement in the room, around the buds and the most bushy or in contact parts, rh will be much higher and even condensation can happen and mold will grow!
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