1: Very broken normals and tangent spaces.
2: Flagged for external emit and has external emit flag, but had the wrong shader type on the trishape and is missing the glow_shader flag, meaning any attempt to assign emittance would crash on AMD. The Emittance Color is actually 0 and the design makes it clear it's not meant to have lighting, so I just removed the external emit flag from the trishape and the bsxflags.

Attached Files:
casexttower01dark.nif