Transaction not yet indexed

5S21DjaAybK2KNrjEt7sopKZGWMf9ReHBKYwcmtwBGpNhdpfoZDUGMWaUGSiJxbBrrnj7WNfFFXbDbfX2HUUMmRv

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