My player character keeps ‘bouncing’ or getting launched when stepping on fractured pieces. I need a way to fix Chaos Destruction debris colliding with the player. The intact pillars must keep their collision, but the broken fragments should Overlap or Ignore the Pawn. I’ve spent 4-5 days trying everything—could someone please show me the correct way to do this? 
See the following post:
I tried using Collision Profile Per Level before, but it seems to disable collisions for the entire level rather than just the fractured pieces. For example, in Level 1, even though the structure hasn’t collapsed yet, I can walk straight through the pillars that are still standing.
What about the below option?
How to Disable collision on small chunks of GeometryCollection (Chaos Destruction) : r/unrealengine
Apologies if this is redundant, I haven’t gotten to the point of using chaos destruction just yet, so I don’t know how to test these methods.
Setting the collection fragnents to “sleep" should prevent any issue while walking over the pieces in theory.
If not, it’s more likely an engine bug. I’d suggest going back to Nvidia instead of chaos in a custom build (though fragmentation stuff is likely just Chaos. For nvidia phys x there are older destruction tools or you have to make your own custom geometry cache).
I’ve fixed it by creating a new Collision Profile named ‘NoBlockPawn’, setting it to either Overlap or Ignore the Pawn channel. Then, in the Collision Profile Per Level settings, I assigned:
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Index 0: None
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Index 1: NoBlockPawn
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Index 2: NoBlockPawn
After that, for the Block Pawn part, I added an internal ‘steel frame’ (core structure) inside the statue. I also set the collision of this internal frame to Ignore the Destructible channel.
If you want the Skeletal Mesh to collide with the fractured debris, try enabling these collision settings.
Weirdly, the forum didn’t alert me to a response on this thread; sorry for the late reply, but glad you found a solution.