Oh Token, you need to pull everything out & kill thoes microscopic mold spores. Probably lots of other spores living in that mix too since they all like pretty much the same conditions. Sanitation IS prevention. When you pull EVERYTHING out, you can spray the walls down with straight peroxide, wipe it dry, spray again then let it air dry. & I do mean, do not miss an inch. There may be all sorts of pathogens that can attack your plants on thoes walls, floors & ceiling. Now that I know about that, I wonder if your tent surfaces & lights aren't contaminated too. That's always possible. If this last batch is affected, don't even bother doing it again untill you scrub everything & spray with peroxide. Use a fan to dry it out as fast as you can. Once there, that shit can be IN, not just on, drywall or other porous surfaces. You actually may end up having to relocate.