Yep, this would be the second time, that is correct.
And this thing was leaking from 3 screws, the manifold on both sides. I was thinking of taking it apart, but like you. hell no! This thing is a nightmare to take a part and if you break or damage the O-ring then you are really out of luck! I did tighten a few of the screws as i noticed they were all loose, but the block is still leaking from other places. When it happened I was like why my computer cut off then seen the liquid all over the place. luckily I had flipped my PSU over about a week earlier or i would be replacing that as well.🤦♂️