Context :
i'm using iron spell book which require curio or curio layer but i have to use curio layer since aether mod has built in accesories, to avoid having 2 extra slot mod (in my modpack)
i noticed a bug that append if you wear mutiple of the same item the item dosn't work open entering a world (i don't know about server this was tested solo)

Exemple :
notice that i'm 200 mana while having 2 mana ring (each ring give 100 mana) and you have 100 mana by default,
so in short i should be at 300 mana

the only way to fix it manually is ti un-equip - re-equip the item and now i'm at 300 mana

The test were done using those mods on cursedforge

• Accessories
• Better Combat [Fabric & Forge]
• Apothic Attributes (AttributesLib) (depandancy)
• Placebo (depandancy)
• Cloth Config API (Fabric/Forge/NeoForge) (depandancy)
• Atlas API (depandancy)
• Iron's Gems 'n Jewelry
• Iron's Spells 'n Spellbooks
• Just Enough Items (JEI)
• playerAnimator (depandancy)
• Curios Compat Layer for Accessories
• GeckoLib (depandancy)
• oωo (owo-lib) (depandancy)