[Bug] Missing textures of inventory icons

[Mania2620]

Description of the bug:
Everything seems to be alright, but the icons are mostly missing textures (the same happens if I drop the item, it is just the missing texture square)
I have used this texture pack before in the same environment and it was perfect, any ideas as of why this is happening?

Environment:
Mod Loader (Fabric):
Minecraft Version (1.21.4):
Launcher: Prism Launcher
OS: SteamOS
Instance: Fabulously Optimized
Are you using OptiFine? (No):
What other mods are you using? (List):
*Better Mount HUD
*BetterGrassify
*Capes
*Continuity
*Controlify
*Cubes without borders
*Debugify
*Dynamic FPS
*e4mc
*Entity Model Features
*Entity Texture Features
*EntityCulling
*Fabrishot
*FerriteCore
*ImmediatlyFast
*Iris
*LambDynamicLights
*Lithium
*Main Menu Credits
*Menú de Mods
*MixinTrace
*Model Gap Fix
*ModernFix
*More Chat History
*More Culling
*No Chat Reports
*OptiGUI
*Paginated Advancements
*Polytone
*Puzzle
*Remove Reloading Screen
*Sodium
*YOSBR
*Zoomify
Please attach screenshots if applicable: