Transaction not yet indexed

421MNDxEh2pP86YPtd5ToqZeQf7aqQLF6f5kXw5KmqWzbTMKVyEMtxP9PMBmswqYo3abuq6ee15cTEqUyh4UiWqT

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