Transaction not yet indexed

MLMatLBE7AugJDZLBAdjh6jMMcr324iZwLPo3bW6FtvcAJzGpNKjvPJtuJbZuZ8u3f8FPc2qJHcCigxHRc75NrQ

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