Transaction not yet indexed

4Kt21iTzD5r58tmHic1AZZh88gQd6bugCpB8Zp1fCeA97ofb3ZbcLkXSmomZaw28RSiuDjsVTQ1vENsqoRQFoP37

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