Transaction not yet indexed

iS3ssv129ky9ZYKfbbM2sfhQVPhb1rkPxZx9aSasgQJsBkzLU1H8D1MMfVB6H7CB51nZLU1c1JyfaApEE8TkDNT

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