I've got 3 kits, 1 is my dad, 1 is my dads full sister and the other is their half brother, I've been able to add the relationship of brother and sister between my dad and his sister so that she shows as sister on his list of matches and he shows as brother on her list of matches, I've also been able to add their half brother as showing as half brother on my dads list of matches but it will not work between my aunt and half uncle, one of them will be showing wrong on the others list
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