Transaction not yet indexed

421WDrPAfzCMKQmUvLmcpuLBvSMo8CZiNcvVDaYMB3jPRqtKjVw2u2i1crfDsGw8RVLEkhk7sUZginUSGv16QpD7

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