I would delete the tracks that you have muted then select file/save as and select the BiaB file extension or whatever format you want.

That is all the information that I can give as I rarely use RB.


Tips on how to fall asleep in a living room chair:
1- Be old
2- Sit in a chair

64 bit Win 10 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware