Transaction not yet indexed

421ZPHGsmYFa2nEu2bCXCYZeQvdPF1gbN1UXWbL7p2ihfEoFcaySTCBEFypAC3Y2pMtSivaaSPnDpywLZQHjGDRm

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