Hi @arafiq
When you use Zenith as Roon Core, do you also use it as a streamer? In other words, USB out from your Zenith to your DAC?
I terms of copying your music in your SonicTransporter to the internal SSD in your Zenith, you do it via the InnuOS interface (switch Roon toggle button off first). Leave the SonicTransport in the network. Then use the “NAS” import method via InnuOS.
This will copy what is in SonicTransport without touching what is already in the Zenith. Once all this complete, you can switch back to Roon