Transaction not yet indexed

MdTbPAkZZ61X1vSPE7EeaM143eo7k3esEx9rftQBj6ZeeB7GqvZj5dNBxHutepvXbdkMkmb6qnCFtNpH2vWwNZs

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