Error in add-on armors due to missing Component "knockback_resistance" in "minecraft:item"

Since the last update 1.20, after having removed the "knockback_resistance" component from "minecraft:item", I've been testing my addons and creating new armors and I realized that when I use one (netherite armor) and after changing the armor pieces with those of my addon, the "knockback resistance" stays stuck at 100% and I have absolutely nothing strange in the addon or anything just by changing the armor netherite to >> any addon armor ends up bugging giving 100% knockback resistance permanently while wearing the addon's armor.