Physics simulation glitch when Destructible Mesh touch other physics simulate object

Hello guys,
I was just adding some asset to my mini game. I have one actor BP with a Destructible Mesh as a root. Enabled physics simulation, enabled hit when simulating physics, in BP I connect hit event lead to add point damage. However, when I place it on another physic simulate actor, weird things happens. It seems like the DM BP is sucking another actor. Here’s the gif


After I disconnect the Hit event they stay cool. Any idea what’s going on here?(P.S. the DM BP did not break after it touch the surface. If I use physic hand to grab it and attach it to other object, it will suck that object and able to move it around.