Seedling deformity?

I noticed this morning that the third set of leaves are deformed meaning one is alot bigger than the other is my plant dying

I had a seed like this. It should grow out and be ok.

I think that's probably too much misting. Also are you allowing the dirt dry out well? mj isn't one of those plants that deals with constant water well and it could rot your stem, roots and attract gnats. To be honest I don't spray my plants I keep my humidity over 50% ideally I like 60-70% in my veg room. If necessary sometimes I foliage feed but I do that at lights out. Which is another reason I run 18/6 vs 24/0 in my veg closet.

Seeds can put out deformities, nothing unusual but I agree with @MeJuana, that cupping you're seeing in those leaves is something to do with the environment or misting (or both), maybe too hot plus the misting. Soil looks wet enough for a seedling that size to last a week or more. Let it dry out, don't mist any more and it should recover fine. They're very hardy plants, really difficult to kill but don't fret about deformities, if you grow out enough seeds you'll see all kinds of them.