anti-enchantements(curses) bugg

i tryed to make negative enchantements with the help of datatags but when i used the items the followed happend:
-sharpness,smite,bane of arthopods seems to work normal
-armor enchantements dont work
-thorns doesnt work
-protection does the same protection as the not negative number
-swords with damadge under 0 will sometimes still deal damadge

images coming