Transaction not yet indexed

21UPfUgbcwtRTQhmrwrpqsrFdiFZ7E2P9EcfAjmUqAk4ebXgoQq9AHWVSeYgFSnuLfsvwkzXtezxw1PMBvGCtpEk

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