Curtain wall doubles.

[jfjacques]

My curtain walls seem to have extra pieces of glazing. I can see them in the schedule and when I go to show them they appear, seemingly right where other curtain wall galzing is, or perhaps right behind it. In any case, even though the object is selected I can't seem to delete it. 

[ToanDN]

Maybe you have two curtain grids overlapping. Delete one should fix it.

By the way, you cannot delete curtain panels, only change their type to Empty system panel if you don't want them.

[ennujozlagam]

save your curtain wall in a new file, post it here so we can check. thanks