I think I've encountered a bug in enscape.
When I'm editing a material in Revit, everything looks good while the manage material box is open. However when I click "OK" on the manage material box, the object loses all colors and becomes completly white.
If I reload enscape everything's back to normal.
The same behavior seems to be on all my models.
Running on enscape version 2.3.3.1375-gc355009, Revit 2019