Transaction not yet indexed

421pm2fbjGVZCLfnZnU1SDyv3ZP9h7VEsUmresEkzNNbxM69zqZ5XgAFkGpG6W7XDeks5vrmsQKTwkGF6NDNbCop

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