Every Sunday at 6:00 AM, my backup job ran, logged no changes , and exited 0. For three weeks straight it never copied a single file. macOS was blocking it, and nothing in the system told me.
Source: [Dev.to](https://dev.to/bokuwalily/3-weeks-of-silent-backup-failure-why-launchd-cant-write-to-documents-on-macos-4ecm)