leggins, helmet have their texture bugged only in item form, only happens on the server so its not client side

Any screenshot or further explanation what you mean with on the server? Which version?

Textures should be client side and there shouldn't be any differences between mp and sp worlds.

it was a bug of the item, i craft the same item again and it worked, it may have been a api problem or idk but it was fixed (the og item is still bugged)