brassavola nodosa mutation?

[cakedaddy]

Hi all...I mounted a nodosa in the spring and this summer it put out a couple of new growths and is starting to give me lots of roots. One of the growths has a second leaf. Is this something that nodosa will do naturally on occasion? I have used superthrive on it. Just wondering if that could be the cause. To give you a bit of background....the division that I bought was pretty sad looking when I got it unpotted, hence the superthrive. All of the older growths are shriveling down to nothing and the first new one was awfully stunted. The second new growth with the double leaves is larger and is giving me another growth.......
Thanks in advance.