Because of the extrem Defolitation/Schwazzing, which was more or less necessary regarding Humidtiy levels of of over 95% around evening night and morning. Even though I also did it for trying out how the Plants react. They mainly stopped growing Bud for 3-4 Days and the leaves of the Bud Sides got a bit Bigger. Also I had problems with NutBurn and Heat Burn, Nutburn because of my not constantly watered Pots which, I guess, ended up beeing a really salty and nutrient soaked(from the soil) substrate because they are reused Filters for Water out of clay. As well in midday it gets really hot and we are more than 3500ft over the sea level.
And why I grow in Clay Filters ? Just to try, in my opinion already not recommendable even though it keeps the Soil a bit cooler..