Applying Physics to Destruction Mesh Shards

I have created a rock with lots of (600) voronoi shards. When I walk over to the shards it appears that physics is not being applied to them. Does anyone know how to apply physics to Apex Destruction shards?

Maybe if there were less shards physics would apply but it certainly does not work for lots of them.

Should just be a setting somewhere for the chunks (shards) to simulate physics. Check in the Destructible editor after opening an asset.

Could be wrong though, haven’t looked at those settings for a long time, but I remember that being a standard setting.