Transaction not yet indexed

ymDPZAiKuMUMU9mwXTY5a8tUgSSjKK3UJ8HVh7G2uChAenGvdg8Gc52kkXtkJ5RaLDzyxYeemhDfXBSNsvZ3fFD

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