Transaction not yet indexed

421MZ8nExdp2ETcPrBFUYBFNt2LZP9MnS1SEsxeMSKAJcZJhT6MvfqsGSgq2EDSWdLFdYirHYDxzED3hQ2TwGG6Q

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