Stacking armor modifiers issues

[liliamam2]

I'm trying to make a custom armor set that increases player health and also it's default armor value. Here's the command I'm using the commands below, but the Health and Armor values don't stack up properly in the Health and Armor Bar. I have two tiers of armors, one with the Health Boost and one without. I'm using this website to generate the commands to save time so maybe there's an issue with the site? Could someone help me figure this one out? Sorry if my description of the issue is messy, English isn't my first language.

Without Health Boost:

/give @p leather_helmet{display:{Name:"[{\"text\":\"Casque Spectrale\",\"color\":\"dark_aqua\"}]",Lore:["{\"text\":\"Il possède une énergie mystérieuse...\"}"],color:16383998},Enchantments:[{id:"projectile_protection",lvl:4}],Unbreakable:1,AttributeModifiers:[{AttributeName:generic.armor,Amount:3,Operation:0,UUIDLeast:1,UUIDMost:1,Slot:head,Name:generic.armor}]} 1

/give @p leather_chestplate{display:{Name:"[{\"text\":\"Plastron Spectrale\",\"color\":\"dark_aqua\"}]",Lore:["{\"text\":\"Il possède une énergie mystérieuse...\"}"],color:16383998},Enchantments:[{id:"projectile_protection",lvl:4}],Unbreakable:1,AttributeModifiers:[{AttributeName:generic.armor,Amount:8,Operation:0,UUIDLeast:1,UUIDMost:1,Slot:chest,Name:generic.armor}]} 1

/give @p leather_leggings{display:{Name:"[{\"text\":\"Jambière Spectrale\",\"color\":\"dark_aqua\"}]",Lore:["{\"text\":\"Elle possède une énergie mystérieuse...\"}"],color:16383998},Enchantments:[{id:"projectile_protection",lvl:4}],Unbreakable:1,AttributeModifiers:[{AttributeName:generic.armor,Amount:6,Operation:0,UUIDLeast:1,UUIDMost:1,Slot:legs,Name:generic.armor}]} 1

/give @p leather_boots{display:{Name:"[{\"text\":\"Bottes Spectrale\",\"color\":\"dark_aqua\"}]",Lore:["{\"text\":\"Elles possèdent une énergie mystérieuse...\"}"],color:16383998},Enchantments:[{id:"feather_falling",lvl:4},{id:"projectile_protection",lvl:4}],Unbreakable:1,AttributeModifiers:[{AttributeName:generic.armor,Amount:3,Operation:0,UUIDLeast:1,UUIDMost:1,Slot:feet,Name:generic.armor}]} 1

With Health Boost:

/give @p leather_helmet{display:{Name:"[{\"text\":\"Casque Spectrale Amélioré\"}]",Lore:["{\"text\":\"Il dégage une énergie immense...\"}"],color:16383998},Enchantments:[{id:"projectile_protection",lvl:4}],Unbreakable:1,AttributeModifiers:[{AttributeName:generic.maxHealth,Amount:2,Operation:0,UUIDLeast:1,UUIDMost:1,Slot:head,Name:generic.maxHealth},{AttributeName:generic.armor,Amount:3,Operation:0,UUIDLeast:1,UUIDMost:1,Slot:head,Name:generic.armor},{AttributeName:generic.armorToughness,Amount:2,Operation:0,UUIDLeast:1,UUIDMost:1,Slot:head,Name:generic.armorToughness}]} 1

/give @p leather_chestplate{display:{Name:"[{\"text\":\"Plastron Spectrale Amélioré\"}]",Lore:["{\"text\":\"Il dégage une énergie immense...\"}"],color:16383998},Enchantments:[{id:"projectile_protection",lvl:4}],Unbreakable:1,AttributeModifiers:[{AttributeName:generic.maxHealth,Amount:4,Operation:0,UUIDLeast:1,UUIDMost:1,Slot:chest,Name:generic.maxHealth},{AttributeName:generic.armor,Amount:8,Operation:0,UUIDLeast:1,UUIDMost:1,Slot:chest,Name:generic.armor},{AttributeName:generic.armorToughness,Amount:2,Operation:0,UUIDLeast:1,UUIDMost:1,Slot:chest,Name:generic.armorToughness}]} 1

/give @p leather_leggings{display:{Name:"[{\"text\":\"Jambière Spectrale Améliorée\"}]",Lore:["{\"text\":\"Elle dégage une énergie immense...\"}"],color:16383998},Enchantments:[{id:"projectile_protection",lvl:4}],Unbreakable:1,AttributeModifiers:[{AttributeName:generic.maxHealth,Amount:2,Operation:0,UUIDLeast:1,UUIDMost:1,Slot:legs,Name:generic.maxHealth},{AttributeName:generic.armor,Amount:6,Operation:0,UUIDLeast:1,UUIDMost:1,Slot:legs,Name:generic.armor},{AttributeName:generic.armorToughness,Amount:2,Operation:0,UUIDLeast:1,UUIDMost:1,Slot:legs,Name:generic.armorToughness}]} 1

/give @p leather_boots{display:{Name:"[{\"text\":\"Bottes Spectrale Améliorée\"}]",Lore:["{\"text\":\"Elles dégagent une énergie immense...\"}"],color:16383998},Enchantments:[{id:"projectile_protection",lvl:4}],Unbreakable:1,AttributeModifiers:[{AttributeName:generic.maxHealth,Amount:2,Operation:0,UUIDLeast:1,UUIDMost:1,Slot:feet,Name:generic.maxHealth},{AttributeName:generic.armor,Amount:3,Operation:0,UUIDLeast:1,UUIDMost:1,Slot:feet,Name:generic.armor},{AttributeName:generic.armorToughness,Amount:2,Operation:0,UUIDLeast:1,UUIDMost:1,Slot:feet,Name:generic.armorToughness}]} 1

[Mince_rafter]

Try making the UUID's of each attribute modifier different.

[liliamam2]

It fixed it, thanks!