Vulnerability probe

Hey, recently got a Lightbringer, and vulnerability probe along with it. I like the concept but I have no proof that it works as described. Have anyone tested somehow if it does add crit? And does it add crit for 5 sec once per enemy, or as long as an enemy lives it adds crit and after it dies the effect lingers for 5 seconds? There are no buffs of any kind, and the weapon info doesn’t update itself as well having enemies around with VP.

Also Duelist protocol doesn’t seem to work either.

 

4 hours ago, TheDarkRedFox said:

Also Duelist protocol doesn’t seem to work either.

 

Last time i checked it does.