Transaction not yet indexed

5SMMLyNjjkjFPoTqWsWNc6gc21aps99RhPj4umMuHqazdEwCdqqjj4aL6YNpVG1GHJEvz2sap6BW4cAzZ7cZTLT2

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