A containerized batch job that processes files via a bind-mounted host directory works on one engineer's machine but not on a teammate's, with no permission errors, just silently empty output.

Check whether the bind-mounted path is actually correct/existing on the second machine — a common cause is a relative path in a Compose file resolving differently depending on the working directory `docker compose` is invoked from, or environment-specific path differences (e.g., a Windows path format issue, or a symlinked directory that doesn't resolve the same way) silently mounting an empty or wrong directory rather than producing an explicit error.