I filed for a change in tax year for a corporation. FYE was January 31, 2019. I file a 2018 year return for the FYE January 31, 2019. Now I need to file a short period return for the period February , 2019 through October 31, 2019. How can I do this? If I clear the efile using efile support tool when I go to efile it shows it's already been filed.