Vader Ability Block not applying?

Scratch

Has anyone else noticed that Vader's ability block on basic attack doesn't proc as much as it supposed to anymore? Even against a Jedi without tenacity up or foresight, it still didn't apply. It used to apply on a jedi even with foresight before.

crzydroid

I think it's an 80% chance.

Scratch

granted, it still is only applying like 1/10 vs 4/5