We want to make you aware, we recently identified a critical issue with restoring backups in Percona Backup for MongoDB v1.1.0. We took immediate action and have released Percona Backup for MongoDB v1.1.1 to fix the issue.
We strongly recommend all Percona Backup for MongoDB v1.1.0 users upgrade as soon as possible to v1.1.1. Importantly, no data will be lost as part of this issue. Once you upgrade to v1.1.1, you should have no issues restoring your data.
More detailed information on the fix is included in the latest release notes. Percona customers can contact our support team with any questions. Or, reach out to us via the Percona forums.