Transaction not yet indexed

51c9UawHApTm9zUf3J22ZMJCnYHLKVQdSd4MNdHsVhxkAB3YGUGjfM3UDXmqqYArw93TC5epwbyCd9G7HPu8RLF2

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