Two things, first it's over Watered. The wilting of the leaves and leather look shows you it's being suffocated in water.
Just because both recieve the same don't mean both like and want the same.
Left plant is clearly a different pheno, not all seeds come out identical. Check out my sour stomper grow, 2 seeds made 2 totally different looking plants that required different care and feedings.
The left does look like a mutant, my jammy dodgers did this and I also have a diary on him. I just Watered less. He eventually caught up. I yielded 4oz from him.
Just water the left one less, it may be a insane plant in a good or bad way who knows. Document it for yourself, for us and for the breeder!
Just water it less buddy, you got this, the right one looks better and beautiful 👍
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