HB doesn't equip heirloom, low score

[Tayhatsu]

HB equip green clothes instead of heirloom because of a low score.
The meaning of the score things is lost...

example:

[11:43:27.727 N] [AutoEquip] Equipping item Набедренники болотоходца (http://www.wowhead.com/item=36888) instead of Запятнанные штаны незаметности (http://www.wowhead.com/item=122254) (slot: Legs) - it scored 891.24 while the old scored 806.21

 

[MaiN]

You are level 70 and that heirloom only works until level 60: Stained Shadowcraft Pants - Item - World of Warcraft
Since it has stopped working AutoEquip treats it like another other item, and thus equips a different item that is better.