doesn't look mutated. light burn doesn't typically start that way, and that young would have fallen over at same time, probably. wilt at least accomanying the light burn that expands rapidly.
think the other is self-inflicted, even if treated the same as the other plants. this one is going to be more sensitive, at least early on. Always let the plant dictate. if one is different, that's the way it goes when you grow a variety of genetics.
it doesn't mean they are bad, if they are unknown. if i had to wager on the chances being better or worse, well, that's different... but don't jump the gun.. at this point they could be the best buds ever too... lol.