Unraid 6.11.x - smb-extra.conf empty after reboot

Unraid 6.11.2 thru 6.11.5

On reboot, smb-extra.conf file is always empty.

I copy/paste my configuration back from the last flash-backup and restart samba and all is well.

But it still clears the file after every reboot.

Any suggestions on how to troubleshoot this?