Am I understanding the vector drawing feature in CTA5 correctly... that the prop maintains itself as vector only one way?

I've connected the PSD launch to Affinity Designer and creating new vector drawings, then save to CTA5 as a prop, but when I launch back to Designer it's still converted to a raster image? That's the same thing I had with CTA4, so I'm wondering if I'm missing something, or what's new with vector images?

UPDATE: I think I answered my own question. The object created in Designer (or other image editor) and saved to CTA5 is a vector image in CTA5 (?), but when I launched back to Designer it is converted to a raster image. Is that the difference between CTA4 and 5? -- I get a better image, but still have to save the PSD project file in Designer then copy/paste to continue using vectors?