I`m more than a year late with a reply but I grew a batch of 5 fems and 2 were hermies (immediately showed bananas with no visible stress otherwise, PH`d water right nutes right temps & humidity also good EC) and the ones that were FEM got mold indoors with about 20-30% RH.
I grew them along Nirvana`s Blue Mystic (regular) and did not get any hermies or mold on those plants so I`m guessing it has to do with the seeds....
I don`t have pix so you`ll have to take my word for it but I swear it probably has to do with the seeds as I have never had this happen in my setup before. I will give green house fem`s another shot (kings kush at the moment) and see if I get similar results. If not I am going to stick to clones from regular seeds in the future.