Transaction not yet indexed

421mUN7MEYtMXzi93cGXQep4g4c2gTxVhJQ89VuTZo7CPiBNvkKXKuENuZA7DwVz6ruvn6mpK8UkUGCWMhaXfSmV

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