Well to me that points to the ones from CB.
A similar thing happened to me once...many years ago. I was looking for a particular cigar to try, and I happened upon a local tobacco shop with a small walk in in the back. I walked in there and lo and behold they had what I was looking for. I think it was one stick. Bought it, came home and put it in my humi, along with a handful of other sticks...I didn't have too many back then, hell I still don't but thats besides the point. Came back probably 2 days later to inspect and maybe pull something out, when I noticed the new stick looked like a moldy piece of bread lol. Granted I was so new I was still using the foam sponges for humidity.
I freaked out. I think I saved maybe 2 sticks..heck I don't recall exactly anymore, tossed everything out including the foam. Put the sticks I saved to be smoked in some tupperware, and I recall smoking them in short order. Ordered beads. Since I had no sticks, I went and left the humi open for about 2 weeks to dry out completely. After that I went to the store and got some very fine grit sandpaper and lightly sanded every part of the inside of the humi. Vacuumed all dust out, let it set another few days, then re seasoned it with the beads, and slowly added in some stock a little at a time.
Never had a problem since. I don't even have that humi anymore, my buddy does but its still working just fine. To this day I still don't know if it was the cigar or the foam or both. However I went back to that store after and what I failed to see the first time..probably because I was surprised to see what I was looking for, was that they were pretty much making it rain inside their humi, and over humidifying their sticks. I mean when your in a small humi and they have a stand up humidifier running so much you can see the water vapor...maybe its a bit much.
I never went back, lol.