Staircase Graphic Issue In Revit 2018

[mujahid.kadri]

 staircases is not showing properly in 3D view

[ToanDN · Accepted solution]

Change stair structure underside from smooth to step.

[Anonymous · Accepted solution]

This happens to me too. If you set the underside surface to stepped instead of smooth in the run type properties of the staircase it works fine.

Alternatively you can make it as a model in place sweep

edit: Do'h! @ToanDN beat me to it while i was typing!