RB uses a BiaB executable to generate. It may be that is where the root cause lies.
Just a thought.
Many workarounds have been mentioned. Workflow, workaround whatever.
You can get it done in RB ..
/I probably should have avoided this thread, but I guess my suggestion is just 'get r done' however it works best for you

Make your sound your own!
.. I do not work here, but the benefits are still awesome