Transaction not yet indexed

MKELLXrSZsC6jQDreLboWkdDSCgi3zcsWC6F9MiMMBr9U9YcxT78wR2hYPbD2MXfv7hEBAi2buiZCtUtSVoooAs

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.