Transaction not yet indexed

Z21zihFbkhMpdQ94SCmq2yrUQXmL9xMNfCqMf631URpXmiK2caPUFqr3WTQi3kKZpGJsDdj2xGZCYyzWK1TgEC6

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