Can't export Voxel in UE4.27.2

Hi, i’ve created a little voxel game in UE4 to destroy the ground and environment with a score system, but when i packaged it, it not export the voxel level file but only the project.
And then, the voxel is not active. And when i’m trying to export it with Development or Shipping it’s the same thing.

I’ve downloaded this voxel and it works on UE4 : UE5 Voxel Destruction Tutorial - YouTube

What can i do ?