[1.1.1 Windows 10] Nox Sinon not increasing stacks of demons

I’m uncertain if this is a bug or working as intended. The Nox Sinon is not increasing the maximum number of lesser demons you can stack

========== CHARACTER ==========
Smitty the Demonologist
Achievement Points: 2502 / 5079 (49%)
Time Played: 352:55:28
Game Version: 1.1.1

Anointments: We Are Pack, Perseverance, Light’s Augmentation

========== CREATURES ==========
Level 15922 Lich Netherwalker
Fused with Mimic
Personality: Timid
Lich / Chaos

Health: 148097
Attack: 100324
Intelligence: 95546
Defense: 63704
Speed: 89172

Innate Trait: Watch of the Buried
When this creature gains a minion, that minion’s number of stacks is set to the maximum amount, excluding effects that increase the maximum stack count.
Fused Trait: Surprise!
This creature always starts battle at the top of the Timeline.

Artifact: Diffusion
24% Intelligence
24% Intelligence
24% Intelligence
(Empty Trick Slot)
Diffusion

Trait Slot: Diffusion: After this creature gains a minion, your other creatures that don’t have this trait gain that minion as well.

Spell Gems:


Level 15922 Clawing Cockatrice
Fused with Lich Shadowcaster
Personality: Clever
Cockatrice / Death

Health: 162429
Attack: 66883
Intelligence: 140127
Defense: 47778
Speed: 100324

Innate Trait: Outcast No Longer
At the start of battle, the races of the last 3 creatures in your party are changed to that of the first creature in your party.
Fused Trait: Sacrimony
Your creatures Cast Death spells as if they have 100% more Intelligence. This trait does not stack.

Artifact: AndricksEmpowerment
24% Intelligence
24% Intelligence
24% Intelligence
(Empty Trick Slot)
Andrick’s Empowerment

Trait Slot: Andrick’s Empowerment: Your creatures deal 5% more damage for each minion each of your creatures have. This trait does not stack.

Spell Gems:
Crucifixion


Level 15922 Grave Leper
Fused with Roost Watcher
Personality: Apathetic
Leper / Sorcery

Health: 222929
Attack: 105101
Intelligence: 81215
Defense: 54149
Speed: 76437

Innate Trait: Puppet Master
This creature deals 20% more damage and takes 5% less damage (up to 80%) for each minion it has.
Fused Trait: Gulper
This creature deals 50% more damage for each buff, debuff, and minion it has greater than its target.

Artifact: AndricksRoyalDecree
24% Intelligence
24% Intelligence
24% Intelligence
(Empty Trick Slot)
Andrick’s Royal Decree

Trait Slot: Andrick’s Royal Decree: After your creatures gain a minion, they also gain a random buff. This trait does not stack.

Spell Gems:


Level 15922 Water Salamander
Fused with Stag Idol
Personality: Shy
Salamander / Life

Health: 152874
Attack: 90769
Intelligence: 66890
Defense: 66883
Speed: 127388

Innate Trait: Wallflower
After your creatures Defend or Provoke, they Cast one of their spells at random. This trait does not stack.
Fused Trait: Star Prayer
Your creatures’ Chance to Attack Spell Gem properties have double the chance to activate. This trait does not stack.

Artifact: Synthesis
24% Intelligence
24% Intelligence
24% Intelligence
(Empty Trick Slot)
Synthesis

Trait Slot: Synthesis: After your creatures gain a minion, they gain 30% of their highest stat. This trait does not stack.

Spell Gems:


Level 15922 Nox Sinon
Fused with Infernal Inquisitor
Personality: Apathetic
Exotic / Nature

Health: 242038
Attack: 76437
Intelligence: 85992
Defense: 57334
Speed: 81215

Innate Trait: Unleash the Horde
Your creatures can have 3 additional stacks of each minion. This trait does not affect minions that normally have a maximum of 1 stack. This trait does not stack.
Fused Trait: Open The Portals
After this creature Attacks, it gains a random minion. After your other creatures Attack, they have a 30% chance to gain a random minion. This trait does not stack.

Artifact: MasterOfLiches
24% Intelligence
24% Intelligence
24% Intelligence
(Empty Trick Slot)
Master of Liches

Trait Slot: Master of Liches: After your Lich es Cast a Death spell, they gain 10% Intelligence. This trait does not stack.

Spell Gems:


Level 15922 Muse
Fused with Lich Bloodletter
Personality: Clever
Avatar / Death

Health: 162429
Attack: 71660
Intelligence: 140127
Defense: 47778
Speed: 100324

Innate Trait: Better, Faster, Stronger
Your creatures’ minions perform their effects twice. If they don’t have an effect that can be repeated, they are instead 100% more powerful. This trait does not affect Illusion or any Demon minions. This trait does not stack.
Fused Trait: Heretic Blood
Your creatures’ Death spells cost 20% Health and don’t consume any Charges.

Artifact: LordOfUndeath
24% Intelligence
24% Intelligence
24% Intelligence
(Empty Trick Slot)
Lord of Undeath

Trait Slot: Lord of Undeath: After one of your creatures’ minions go away, all your creatures gain a random minion. This trait does not stack.

Spell Gems: