Transaction not yet indexed

21xMf5v77Z3H4pfuuLwbyMvU8awXcYUh6qJFx5xtfZVGyqsrf9f3TFLJD1txU8KEboxNkFn3hsLKz4Pf6S7Hbn52

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