i cant put {Unbreakable:1} enchantment on my items in minecraft 1.21 so i tried to add the enchantment then converting the world to 1.21 but it doesnt work on armor, does it just not work or is there a different issue?
(it works on tools but armor still loses durrability)

i wanted to have items that didnt loses durrability, it worked for tools but armor still takes durrabiltiy. i tested it in minecraft 1.20.4 and armor didnt lose durrability but when i switched to version 1.21 it stopped working
heres the commands i was using:
/give @p minecraft:netherite_helmet{Enchantments:[{id:protection,lvl:255},{id:fire_protection,lvl:255},{id:blast_protection,lvl:255},{id:projectile_protection,lvl:255},{id:unbreaking,lvl:255},{id:aqua_affinity,lvl:255},{id:respiration,lvl:255},{id:thorns,lvl:255},{id:mending,lvl:255},{Unbreakable:1}]}
/give @p minecraft:netherite_chestplate{Enchantments:[{id:protection,lvl:255},{id:fire_protection,lvl:255},{id:blast_protection,lvl:255},{id:projectile_protection,lvl:255},{id:unbreaking,lvl:255},{id:thorns,lvl:255},{id:mending,lvl:255},{Unbreakable:1}]}
/give @p minecraft:netherite_leggings{Enchantments:[{id:protection,lvl:255},{id:fire_protection,lvl:255},{id:blast_protection,lvl:255},{id:projectile_protection,lvl:255},{id:unbreaking,lvl:255},{id:thorns,lvl:255},{id:swift_sneak,lvl:255},{id:mending,lvl:255},{Unbreakable:1}]}
/give @p minecraft:netherite_boots{Enchantments:[{id:protection,lvl:255},{id:fire_protection,lvl:255},{id:blast_protection,lvl:255},{id:projectile_protection,lvl:255},{id:unbreaking,lvl:255},{id:depth_strider,lvl:255},{id:feather_falling,lvl:255},{id:thorns,lvl:255},{id:mending,lvl:255},{Unbreakable:1}]}

sword
/give @p minecraft:netherite_sword{Enchantments:[{id:sharpness,lvl:255},{id:knockback,lvl:255},{id:fire_aspect,lvl:255},{id:looting,lvl:255},{id:sweeping,lvl:255},{id:unbreaking,lvl:255},{id:mending,lvl:255},{Unbreakable:1}]}