purple stems and contorted leaves

Hola, all.
I'm growing from seed a blue hash. sprouted in four days, but the stem quickly turned purple and no growth occured for 10 days. Two days ago, the green returned to the stem, and the growth is freakin abundant, however the leaves are contorted and warped. Not curled under, not wilty, just warped. Any ideas what happened, is this little lady some kind of mutant, now? I don't have any issues with the other occupants, so i'm confident it's not a light or medium thing. Confused and interested for sure. Thanks in advance