Transaction not yet indexed

21sS5MYmu2dp5g1ou6tDk9YnAnGjziuCQuo7Q79Mx9RyA5C6zp173k8BjkxB5c1VtHT36N9Dmw9aXTSAjFgD4ws6

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