Transaction not yet indexed

MgM9iZoJ7AP6Eewp2mppdMVMqufeCfGqqECN45SNpDS75JAibKAd6Ym6xaLbvZdkhYj6ULi9vJmBFPe9mWJVRvH

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