Problem

When checking out code from Bamboo's tasks with git LFS, some large files will appear as empty or the cloned repository contents have zero bytes file size.

Diagnosis

The build log will show entries like:

simple	14-Nov-2017 14:54:22	error: cannot feed the input to external filter true
simple	14-Nov-2017 14:54:22	error: external filter true failed

Cause

This is caused by a Git LFS bug in version 2.1.1

Resolution

Update both Git LFS client (at least above 2.1.2) and Git version (at least above 2.6.x) to the latest version.