Awakener's Orb did not transfer mod from destroyed item.

I used an Awakener's orb on a shaper ring to transfer assassin mark on hit to a opal ring with frostbite on hit. But in the end I got only one of these curses. Both rings had only one of the influence mods at a time. I've seen this work with other curses. This feels like a bug when some curses like frostbite and elemental weakness work, but assassins mark and frostbite don't.

Rarity: Magic
<<set:MS>><<set:M>><<set:S>>Two-Stone Ring of Shaping
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Requirements:
Level: 64
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Item Level: 82
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+16% to Fire and Lightning Resistances (implicit)
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Curse Enemies with Level 12 Assassin's Mark on Hit
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Shaper Item


Rarity: Magic
<<set:MS>><<set:M>><<set:S>>Thirsty Opal Ring of Redemption
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Requirements:
Level: 80
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Item Level: 83
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25% increased Elemental Damage (implicit)
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0.32% of Physical Attack Damage Leeched as Mana
Curse Enemies with Level 8 Frostbite on Hit
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Redeemer Item

Rarity: Rare
<<set:MS>><<set:M>><<set:S>>Honour Nail
Opal Ring
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Requirements:
Level: 80
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Item Level: 83
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25% increased Elemental Damage (implicit)
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+35 to Dexterity
+75 to maximum Life
+23% to Cold Resistance
Curse Enemies with Level 8 Frostbite on Hit
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Shaper Item
Redeemer Item

Those two mods have the same ModGroup.
They cant exist on one ring. So there is no bug.
Interestingly, the following curses have the same ModGroup named "CurseOnHitLevel"

frostbite
flammability
conductivity
warlord's mark
poacher's mark
assassin's mark


while other curses (despair, vulnerability, ele weakness) have it's own unique ModGroup, respectively.

Therefore, u cant craft the ring with double curses on hit like that combination.