Transaction not yet indexed

4z21pCC6GXuoxg76v9dqastjhgah278ZCJ1Q2X13SXxSSVuFanJ6RcxGDJzxv6YMpf6jHq5kD9rc6WA8iHyKufz1

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