Transaction not yet indexed

1MUc5PwhNvb6MtSyqVZ63xPVVv8PyVrtXa1r41DW8xdQmd8vPQdnHSq2Q8WFsuCYRREgVNLEwgnE3ASZ6SUALLP

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