I have one girl like this before this year and when she grow more i see the mosaic tobacco virus, but my plant don't have any problem to finish, probably this virus are from the mother who produce the Seeds, take another week to see how she grow, There isn't any cure if this is tobacco mosaic virus 🤣 in fact i regenerate my plant like you can see in my diaries and now it's ok, never show again the tobacco mosaic because now is strong like a tree