Environment is culprit here.

Leave a few bottom nodes/bud. The process takes 4-6 weeks after flipping to veg schedule.

Soak them in 3% hydrogen peroxide at a 2:1 water/peroxide for about an hour. Then apply Recharge after the reset.

The humidity is obviously too high. Lowering the humidity will kill the mold. Hot and humid is what it wants.

It’s a big problem out west where clones are shared and sold at scale. It’s all anyone talked about for years. This is why we tell new growers to source their own genetics from reputable seed breeders. Buying other peoples problems is a known thing.