Hi Enscape forum,
I have been having a recurring problem with Enscape materials in Rhino.
I need some help troubleshooting it.
I have been setting up materials by defining them as "Enscape type" materials so I can edit them in the Enscape material editor (set albedo, bumb, roughness, etc). However, for some unknown reason, every time I open the rhino file back up those materials lose their "Enscape" type properties, and with them some of the material properties associated with them (roughness and bump).
So, just to clarify, the materials still exist and are still displayed in the render preview. However, some of their qualities are lost (like their reflectivity and their bump) when the materials automatically lose their Enscape type property - which I have to turn back on manually and re-link the images associated with them. 
This is incredibly cumbersome every time I need to re-render the project and therefore I would love to get your guys' opinion on the matter. Has anyone else had this problem?
If so, please let me know how you solved it.
Thank you!
- JB