Transaction not yet indexed

mUmTx8DkHoMSMN8YKixCsn8sVa8SZC8vbnfjkhKinW3ddEe8upkttngkE8zE3CWRy3dfqTQu8fMAy49FMeM5sgk

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