A release candidate for `diego-release` had a bug. You can stop reading if you don't use the `release-candidate` branch from `diego-release`.
The sha that contains the bug is `491d06b4d42c48505d907344773ddd1ef7144cfd`. The bug manifests itself in the form of a `StagingFailed` error. The bug has been fixed on `develop` and will be available in the next release candidate. In the meantime, you can work around it by running `bosh recreate cell_zx` for all the cells in the deployment, or alternatively `bosh ssh cell_zx` then `rm -rf /var/vcap/data/executor_cache/`.
