Make sure your cut plane is within the range of the View Depth...
The most common reason for the cut plane to be outside the View's Depth is the "Level Above" is some sub-level intended for some other part of the project and sits below the standard 7' - 6" cut plane. Often time changing the View Depth Level to be an explicit level with (or without) an offset solves the problem
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Regards,
Steve Burri
Autodesk, Inc.
Client Support Manager - Revit
"stevekay"
wrote in message news:18735425.1086632605701.JavaMail.jive@jiveforum2...
> Walls are not visible in second floor ceiling plan. When placing a ceiling the program recognizes that a space is present. I have checked visibility and view range. Both look ok but still cannot see walls. Walls do show in first floor ceiling plan. Any suggestions?