I have a blueprint with a DestructibleMesh as root component and some children. If I attach the actor to my hand by disabling “Simulate physics” and then re-enable it on the DestructibleMesh, when I throw it away, I see its children remaining in the last position they had before I threw it.
The destructible mesh’s children components are: a collision sphere, a static mesh and two child actor.
I think it is a bug, because it works correctly if I use a StaticMesh rather than a DestructibleMesh. All the children correctly follow the root mesh.