Weakness and resistances don't work

several Pokemon have (Don’t apply Weakness and Resistance) in the attack like Delphox V for example it doesn't apply weakness to opponent bench. one more thing some people mistake is that Charizard ex it's not a fire type Pokemon!

are those the Pokemon you're using? if not check if it's attack got don’t apply Weakness in it, likely it's what you're missing or give exact examples of what Pokemon you are really playing and your opponent.