I have a simple staircase and landing guarding using a tubular handrail and balusters to simulate a glazed infill stair. The handrail had been edited to show a post type extension at the bottom end.
The stair and railings displayed fine in plan, section & 3D views. However upon opening the file today I've noticed the handrail has now disappeared from all views. Similarly in saved backups they are missing.
The stair properties show a handrail type, there are no graphics overrides set for any of the relevant views and all railing/stair elements are set to display.
I've tried creating new views within the same file and creating and pasting into a new project to see if they show up there without success.
Having spent quite some time getting the graphical representation of the stair I want I'd rather not have to redraw it.
I had a similar problem with grids disappearing recently but managed to recover these by maximising 3D extents.
Any suggestions much appreciated.
I'm using Revit 2019.2 build 19.2.0.65.