To much humidity
In the summer here in my humidors I noticed my gauges running 70-75% and the ambient humidy in my shop running at 85-90%. The cigars were having a firmer draw due over humidification. I found a simple solution . I take all humidification devises out of my humidors first. Then I take KL in knee high socks and put them in my shop refrigerator for a couple of days to dry them out. The KL then goes back in my humidors and I can see a 10% drop inside my humidors. The temp also drops reducing the chance of the dreaded mould.
The Native Peoples of the Americas gave tobacco to the world.