Transaction not yet indexed

MfC4D6u2dtW2BqTthVMiEW8fU5BJoU2JjZrEcEVFaQ7W6nrwmL3FCtpPx96iiF7wuzFNNFYc169i2fsdHA3gZCs

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