Transaction not yet indexed

21WUmKM62FMUkauQ437zEyt1Zu8jvc8Z95TNZusPjQCBA7WsUBAzAroZQMDAHZKJLyoMXBnCsYJF5cmYKdNFsok2

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