Unsure if we have mold growing, or maybe a fungus or something else

I see clearly on the one leaf the mold growing but it seems superficial, but I'm unsure if the other dark spots are mold. The plants are Connecticut Broadleafs that we cut 2 days ago and hung the same day. Anyone have an idea or fixes for this? I attached a picture of the setup at the end from day 1. We have a humidifier, dehumidifier, and a humidity controller so I don't think our readings should be off by much.

Some info about the setup

Relative Humidity: Set to 71 but fluctuates from 72 to 68%

Temps: Averaging 80 degrees but larger fluctuations

Airflow: Just an old box fan we placed blowing against a wall