Transaction not yet indexed

Mr4fYcM4LCaADqKuWvMECwo2XqmP9SLrKLnAKAJg8kkKSZP2cSWmjiiPB3kkBTMwpeoHDBwFQPNHnAf4MZiEkJJ

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