Am I missing something or is this actually the way it works?

I've massaged some RTs in BIAB that I like. I instantiate DAW plugin in my DAW and from the plugin load the song I was working on. The chords show up but not the previously rendered RTs.

Can't they be loaded into the DAW plugin?

Rerendering essentially makes me have to start anew. I Suppose I could export import the original audio in the event I wanted to subsequently regenerate a part of the audio in the DAW plugin ... but how inefficient.

Help! I've fallen up and can't get down!