Is shield slam supposed to be a knockdown skill similar to bash or lunge punch? I ask because I've noticed a number of times I have shield slammed a mob who then flees the room without having to get back on his feet. I enjoy the skill as it is fast and efficient but if it isn't getting all the benefits of a knockdown then I might have to go back to lunge punching to keep mobs down.

I have played a total of 1 generation of Knight since the last wizlock and have used Shield Slam a total of 42 times. I do recall that it is a knockdown. However, it is not the only knockdown that allows the target to flee but still get hit, resulting in them "knocked down" in the next room. I think it's a bug that is triggered when they are in flee range, pretty sure related to another bug where certain offensive spells do not initiate combat if the target is attempting to flee and sitting/resting.