Transaction not yet indexed

5Y91Ky9bviySPBVpjbSb43mYkpNtq8P4Y7ZuBTemn7oucoeDhaHkx5wD5vxPAtGvyvjTkPDKykXd3FTx2YU2MzpB

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