Transaction not yet indexed

MGngUSbJ8MnXH9rPJqkBnuTmMFC3UreC9aAyuj6MYizxQGfEQLsbMriLbhoBA8wnwbZ1dphCatZMNvBZEErCan4

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