Transaction not yet indexed

21Xd18h8SC2QxngTrsqnFrRGChd8WgmYvKKEiq6P79R6reF5MzDdpQePdCcGqPB65gDPvGYqbo6jJejDpQoCU9gd

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