Walls Disappearing in Interior Elevation

[jd10003]

I'm working on interior elevations and the walls that are cut through disappear in the Interior Elevation view.  I've checked layer settings, and the layer is turned on in the interior elevation layer combination.  The walls seen in elevation in the distance are visible, though, so I know that the layer is on and visible.   I can get them to come on by using my Section layer set or 3D layer set.....but the specific layer is the same in all of those different layer sets.  These are composite walls, but my composite floor and ceiling are both showing.

I can't for the life of me figure out what setting I have that would have turned off those walls.  Any ideas other than layer set which might be turning off those walls?  Maybe I should just use one of my other layer combinations that I know are working in this view??

[pbg]

Perhaps a renovation setting?

[MitchD]

Do you happen to have this turned on in the internal elevation settings?

[jd10003]

All the applicable settings were the same between my Interior Elevation layer set an my Building Section layer set, so I just deleted the IE set, duplicated the Section set and renamed it.  Resolved the problem.  So there was something corrupted in my original IE layer set.  Still don't know what was wrong, but I guess I worked around it.