Seems to be a bug with the Revit plugin where if I make model updates in Revit (say turning on or off worksets or placing families etc) with the perspective view open, Enscape does not refresh (live updates turned on!) unless I close the Revit view. Then Enscape starts loading and the update takes place in the render. It's a bit tedious to have to close and open views all the time when it should live update.
Enscape version 2.4.1, Revit 2017