Transaction not yet indexed

MNk5KuZDmessieyiU1ZdnVj51hPD8Td8L2EFE18NhNAAESbZMcDw3HDdQL6KBwnphYpRcxZLPXWfpBFb1hpNGWi

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