Problem with invisble destructible mesh

Hi, i’m having a problem with destrucible meshes. I have a simple Block and created a destructible meshes from it. When i now click on fracture and switch to Preview Depth 1 the mesh just diasappears. When i click around in the Preview window i can select chucks wich is indictaed by showing blue outlines of the chunk. the chunks themselves however are invisble. I am using Unreal engine version 4.24.1 am i doing something wrong or is this, in anyway, intended?

I got the same problem with 4.24.1 on Mac.