I'm having an issue when it is coming to adding flights. I'm trying to add frequencies on regular domestic routes such as IAD-MKE and MIA-BNA but for some reason, cannot get anything to add. I can get to the "add flights" page and all aircraft show up so I can add them to the route. However, when I click "add flights" the page basically refreshes and the flights do not add. Any idea on how to fix this?