sharpness enchantment does not affect the damage of all weapons for every world when critical hitting, with sweeping/normal attacks it does more damage still

sharpness enchantment not affecting damage on all worlds, it instead stays at the base damage of every weapon it is applied to 

What I expected to happen was...:
adding a sharpness enchantment using an anvil, enchantment table, or finding and item with sharpness should affect the damage, critical hits and normal sweeping attacks.

What actually happened was...{*}*

this does not affect the damage, visually or physically, however it does affect the normal sweeping attacks damage, for example a sharpness v diamond sword takes 10 basic hits on an iron golem instead of the usual 15 , but when critical hitting, it instead stays at the original/base damage a non enchanted version of the weapon would, this happens on all worlds i make 

Steps to Reproduce:
1. add sharpness to an item or find an item with sharpness on it, it will not apply the damage it should, and instead keeps the base damage