Transaction not yet indexed

421fkUkVgF9JySfYb8DevGrhE6ERv9YXPvAhSbc66KTNk8UvY7R3MfPWTu76GiEfvsKyGirUtRow7TXhKzGejrxm

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