Sweep Node: Angle Fix causing major skewing on coners

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Hey Guys.
I've got a very annoying problem that I can't seem to figure out. I'm trying to sweep a profile curve around a control curve that has been snapped to a surface (the idea is that it will be a wall). I turned on the ‘Angle Fix’ feature to maintain the thickness of the wall on the corners, which is does, but it also skews the corners out alot. I've attached a photo which shows what I mean. I want the wall to stand upright, and it does except for the corners. I've been trying to figure it out for a few hours now, and the only thing I've figured out is that it has something to do with the fact that the control curve has been snapped to the geometry (when I turn off snapping the problem goes away). I'll attach the scene fill with the digital asset in case anyone wants to inspect it to help diagnose the problem.
Thanks Guys.

Attachments:
DLPT_Wall_Base.hdanc (29.9 KB)
DLPT_ProceduralWall_Dev_V001.hipnc (223.0 KB)
AngleFix Problem.jpg (758.9 KB)

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What about an Extrude followed by a PolyExtrude with Output Back turned on?

Attachments:
ap_dlpt_proceduralwall_dev_v001_158.hipnc (238.9 KB)
Untitled-1.jpg (150.9 KB)

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