I am having trouble e-filing an amended 1040. I followed all the steps to copy the return and make all my changes.  

The EF center shows my Amended Return Ready to EF, when I convert/transmit, I get a pop-up box that says, "Update, Transfer was unsuccessful. Internal error." When I select the OK box, I get the Print Log dialogue box and it says below the client name "User cancelled EF conversion request."

Then I get another box that says "None of the selected returns/extensions/payments were transmitted.  Check to ensure that all selected returns/extensions/payments have been successfully converted for Electronic Filing."

I have the return marked to file the amended return electronically. I have indicated the Amended Return ready to EF. 

Any suggestions?