Hi there,
We are in a situation where our artists have to export their effects to a single alembic file with ‘build hierarchy from path’ checked. Sometimes the shot frame range can be longer than their simulation is and it means they will have to set their export frame range to custom to avoid an error message because no primitive has been found at frame x.
A quick workaround I found for that is adding single primitive with a scale of zero if no primitive is found but I really don't like that solution, it seems a bit clunky.

Is there any other solution that would be more clean ?

Thanks

The Alembic ROP should robustly handle frames where no geometry is provided. What error/warning is the Alembic ROP reporting? Could you post a simple example .hip demonstrating the error?