Transaction not yet indexed

1SZpkdnK8E8mT7xV6UXdYNiDsGBTttd4yrmtDdBUDUnjCFiK9xRZJGVD8v1vNFq4pcLcCeV6ckzfA6mdexQnHjm

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