I had mold once, happened to some Royal Jamaica's, but I was actually kind of happy, as I really didn't like them, so by tossing them it saved me the effort of having to use my cigar time to smoke these. But it happened to cigars that were right under the humidifying device, about three changes after I just charged it. I hope you have tossed those Santas, if not, it will spread to other cigars