Cigars in Tubes

[Felixcigar]

Greetings. New member here (I'll dispense with the life story and usual statistics, its not very interesting anyway). Lets get right to it.

Cigars In Tubes: I am getting the distinct impression that keeping cigars in their tubes while being stored in your humidor is not a good idea. What clued me in to this was the apparent development of mold on cigars that had spent any substantial length of time in my humidor (Bovida at 72%). I have even noticed that the only cigars not stored in tubes that have also developed mold were packaged and shipped to me in tubes (I un-tubed them prior to storage).
Any insight into the mold phenomenon would be appreciated.

Thanks.