Means of Destruction Issue

Means of Destruction won’t recharge my grenades from any splash damage but only in Circle of Slaughter and Proving grounds. I’ve seen gameplay of others using it just fine… Is my character bugged? Or was there a patch?

I have this same issue. Ongoing since Sept. only difference is I don’t get grenade anywhere using this skill. The single exception seems to be the epicentre legendary grenade. This will, on occasion provide a grenade or two when thrown.