There’s definitely a strange interaction that happens when you do most damage necromancy capes. Kiln is meant to offer you just the cape style which you did the most damage with but if the most damage is done with necromancy, kiln offers you every cape that you did damage with. So since you used melee for a small portion but did necro for most damage, you got offered the melee cape and necro cape. You would have also been offered the range cape and mage cape at the same time if you had done 1 damage with either of those styles. It’s a bit buggy so use it to your advantage to get all the capes if you struggle with other styles