In case you have the mods, Cloned Alien Rulers or SuperHeavy Battlesuits, here are the additional configs you will need to add to make it compatible (just add them to the XcomGame.ini document under Config):

+ArmourCatSwaps=(TemplateName=SuperheavyPlatedArmor, NewArmourCat=soldier_Heavy); // Smoke Suit
+ArmourCatSwaps=(TemplateName=SuperheavyPoweredArmor, NewArmourCat=soldier_Heavy); // Shield Suit

+ArmourCatSwaps=(TemplateName=SerpentArmorMk2, NewArmourCat=Serpent); // Viper King Armour MkII
+ArmourCatSwaps=(TemplateName=IcarusArmor, NewArmourCat=Icarus); // Archon King Armour
+ArmourCatSwaps=(TemplateName=RAGEArmorMk2, NewArmourCat=RAGE); // Berserker Queen Armour MkII

The Cloned Ruler mod makes a separate armor set for the Ruler armor. Hence why they have a different Template name and you would need to add this configuration to it. As for SuperHeavy, those suits are essential Heavy armor so I added them to that category.

I hope this helps out! And thank you Rusty for everything!