DestMesh debris destroyed too soon

hi there,

been playing around with the destructible meshes with some awesome results. Im trying to elongate the amount of time the broken chunks stay in the level, at the moment they dont last more than one second. The issue is that no matter what I change in the destructible mesh property panel, nothing changes.From debris, timeout, separation, min/max values, nothing seems to affect it.

If I simulate the “fall” with just dragging the mesh in the scene and simulate physics its there for all eternity. But as soon as I make a blueprint and fire off destructible cows, debris get cleared up asap.

is there anything systemic that I am missing, perhaps some other setting ?

kind regards

after 10 days, still no success

Im starting to believe this might be a code bug thing ?