I have a roof plan with several Duct objects in a linked file from my HVAC consultant. His duct objects show up with green lines by default. I went them to be black, and a heavier line weight in my roof plan. I went to my roof plan View Template and changed the Duct category to have thicker, black Projection lines. No change. I went to the VT and went into the linked file's overrides, changed to Custom, and changed the Ducts category again to have thicker, black Projection lines. Still not change, they're still showing up with green lines.

What is the problem here, why won't it take on the settings I'm telling it to do?