Curtain Wall Corner Mullion, and wall profile issue

[mstehmanEZKDP]

Question Part 1: I have a curtain wall placed inside of a stacked wall assembly. A small sliver of wall still exists at the corner where my curtain walls meet. Will I need to edit the profile of the stacked wall assembly to remove this piece? 

Question Part 2: I've removed one end mullion and change the second as a corner mullion by vertical grid line. No errors occurred and it seems the two curtain walls connected at the corner. Is there always a glass gas as shown? Any way to make it cleaner. 

Thanks,

Matt 

[Alfredo_Medina]

Question part 1) I would work with a simple wall (not stacked) and then I would make the curtain wall type to "embed automatically). That might simplify this.

Question part 2) do some research on how exactly those corners are, by looking at manufacturers' details, such as Kawneer. They have a good collection of details that you can use as a reference. First, identify if this is storefront or curtain wall, then find the product from Kawneer that would be appropriate, then download their details. That will give you a clear idea of what you need to do in Revit to have your mullions modeled correctly.