Transaction not yet indexed

1NPMuSdJ5rknDHRUnmnu7sFPuj9tUe8mpj2ypYC8VfHhJa76QUkcQCyEDfoA5pLncfDXuq8u5NJD56K8vazNb9t

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