Rsync

A transfer began while a PBS packer was still publishing archives. Waiting, repeating rsync, and checking destination hashes recovered the release.

rsync into an encrypted APFS sparse bundle stored on an SMB share failed on every write with error 45. The files were fine. APFS inside the image needs F_FULLFSYNC on the band files, the NAS's SMB server doesn't support it, and a short Python probe proves it.