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