Playstation 5
The Cursebringer perk's proccing is wildly inconsistent, and will sometimes not cause enemies to explode despite getting precision kills (As shown in the video, the second Dreg's head popped but they did not explode), this has been happening repeatedly and far too often in my normal gameplay. Necrotic Grips do not cause this glitch as when done without them on, the same effect still can happen.
You can replicate the glitch simply by using the gun and getting precision kills, as sometimes it just won't activate at random.
My gun has the catalyst active, but I don't see how One-for-Thrall can cause it to happen.