Transaction not yet indexed

MdmnS6i6aS9hmzEuUYoY1WBNmPiFc1wYMyWgUwEXeJUAhVSxPdXQ3M5App7j867C9o2vCXWrsdisMo9fNez7nu7

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