Hullo Ram, likely you have more than one copy of UFile running simultaneously ... try to see all tasks running (you can use task manager to do so). Shut down all but one of the active UFile copies and try to save again. Good luck!
After my assessment, CRA calculated additional $$ of net capital loss for 2017. How can I change my UFile return to include the amount that CRA determined I can use this year? (Change line 253 - in UFile I cannot add this amount for 2017).
Thank you very much for your ASAP reply.