Transaction not yet indexed

521f42r6FFAg5j6zaiEiYLeur4vyZSwvsqXi7fTEnvWMf2pk6LiQ79SXVaZjVcdnCQUryEDbi5HXtHiAqhuTZ6n9

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