Thanks for your comments.nIn preparing my reply, I believe I have worked out the issue. When writing out the ensight parallel file in Fluent, I was unticking the ?separate file for each timestep? box. With it unticked, ensight reports an error. Ensight might be confused by cells moving between nodes due to dynamic meshes.n Using the ?multiple file interface? and ?adding to list? all the encas files in the created sub-directory, the load seems to work correctly.n