endpointErrorConditions  
  The failover conditions for the endpoint. The options are:
- STALE_MANIFEST- The manifest stalled and there are no new segments or parts.
- INCOMPLETE_MANIFEST- There is a gap in the manifest.
- MISSING_DRM_KEY- Key rotation is enabled but we're unable to fetch the key for the current key period.
- SLATE_INPUT- The segments which contain slate content are considered to be missing content.