Reservation Efficiency Not Being Reflected

I have a legacy shield that has "Socketed Gems have 15% increased Reservation Efficiency" mod on it. I got someone to craft an spirit shield that has "Socketed gems have 30% reservation efficiency" vs my old one but the total reserved mana is the same when I switched to the new shield.

The old/new shield is doing something. If i grab a regular shield and socket it my haste skill reserves 326 mana. If i use my 15% one it reserves 289 mana. if I use my new 30% one it reserves 289 mana



Old:
Item Class: Shields
Rarity: Rare
Pain Ward
Titanium Spirit Shield
--------
Quality: +30% (augmented)
Chance to Block: 25%
Energy Shield: 320 (augmented)
--------
Requirements:
Level: 70
Str: 155
Dex: 155
Int: 159
--------
Sockets: G-G-R
--------
Item Level: 86
--------
Socketed Gems have 15% increased Reservation Efficiency
+90 to maximum Energy Shield
+1 to Level of all Physical Spell Skill Gems
+2 to Minimum Endurance Charges
5% additional Physical Damage Reduction
74% increased Energy Shield (crafted)
--------
Hunter Item
Warlord Item



New:
Item Class: Shields
Rarity: Rare
Miracle Weaver
Titanium Spirit Shield
--------
Quality: +20% (augmented)
Chance to Block: 25%
Energy Shield: 275 (augmented)
--------
Requirements:
Level: 68
Int: 159
--------
Sockets: G-G-R
--------
Item Level: 88
--------
Socketed Gems have 30% increased Reservation Efficiency
98% increased Energy Shield
+1 to Level of all Physical Spell Skill Gems
+31% to Cold Resistance
+2 to Minimum Endurance Charges
+57 to maximum Energy Shield (crafted)
--------
Hunter Item
Warlord Item
--------

this isn't a bug.

some legacy mods are changed to function to new mod values but you have to divine the item to update the text. this is listed in patch notes when it happens.