Importing lattice optimised models into 3-matic

Hi,

 

I've successfully created a model optimised using lattice capabilities in HyperMesh. The model contains areas of solid and lattice structures. I am attempting to export this into 3-matic and convert to an .stl file.

 

The first process I tried was:

Exporting the lattice HM file to .fem with a Filetype= Optistruct and Template=Long.

I imported the .fem file into 3-matic using the remesh module.

 

This worked well for the first time I used 3-matic and showed the lattice clearly.

I am now trying again and the lattice is not showing at all in 3-matic, even with the exact file that worked the first time.

 

Any help will be much appreciated.

Thanks