Grim Silhouette bug?

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schovan
Thunder Beetle
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Hi.
Grim Silhouette
Grim Silhouette
Demon Head (Sacred)

Defense: (3830 - 4554) to (5061 - 5944)
Chance to Block: 2%
(Necromancer Only)
Required Level: 100
Required Dexterity: 445
Item Level: 105
Veil King: Doubled Life and Damage
+(3 to 5) to Necromancer Skill Levels
+(13 to 25)% to Summoned Minion Damage
+(75 to 150)% to Summoned Minion Attack Rating
+(130 to 180)% Enhanced Defense
+(500 to 1000) Defense
Maximum Cold Resist +(1 to 2)%
Elemental Resists +(15 to 25)%
Socketed (4)
has a property "Veil King: Doubled Life and Damage", but when I equip it, tooltip stats of Veil King do not change. Is it just a tooltip bug or this completely doesn't work?