Transaction not yet indexed

21dU6Nm9yFMVXVcfy6we2e2qX394mjdpwNcpfaQU1NrnFErag31PoofoGd7zHiyQc8GK7PQ5JrLgoKoSDKNY8YvA

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