Transaction not yet indexed

NmunnD1g9eiMV8nfAzw4DAcdc1mouYQp9CLQxtUQDycisNaY3uQuPAATRyEh8DNiPYA7qdbQdt9XhqQUJXLozd1

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