Transaction not yet indexed

421EMENGev8sEy8Kc13BNe4yuc8fi2nr9Uih8tgJUbJHjkhwVVmFnZkFS6wp9ThbPTzPaEe7ropfSTU4QSxJESUm

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