Error message in MacOS Tahoe when downloading CD files to Apple Music

Since upgrading to Tahoe on my M1 iMac, I'm getting the error message shown on the attached screenshot when trying to download music from my old CD collection into my Apple Music library. I have repeatedly toggled the setting in System Settings to allow access to external volumes, rebooting after toggling the settings, but to no avail. I've even tried it in Safe Mode, but no luck there. Has anybody else had this problem, and even better, does the Tahoe team know about this problem & have a fix in the near future?