Transaction not yet indexed

iSSaAzX54SEfGQw56ADapxLVvZprFUH4F7o4GTd7WqUTcs29Hcro1u8CnWAeHA8oZUT9BwSifRVaMrt2jjsaH21

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