Gmix said:

Forget the burn unless it gets worse it will grow out of it.

I’d be more concerned about the white stuff on your plants is that something you sprayed.

It kinda 1/2 looks like mold but in the dry weather I’d imagine it’s something you used on the plant ? Unless it’s some sorta bug damage. It’s seems to be in all your pics
I loaded one so you can see what I’m asking about

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Gmix said:

Sonunds like a genetic disorder rather than anything you did albeit I don’t recommend foiler spraying especially in flower.

There are flowering slightly it might be slow flowering or your overwatering

However If the breeder admits there’s a problem witch is unusual for them to be honest I’d guess it’s down to genetics

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