Maikun,
Have you used the override feature in the form view for Schedule D, Line 12? If you did, were you not able to e-file after that?
PS My situation is exactly the same: I have K1 Box 11 Code I entry, that came from "FOREIGN CURRENCY GAIN (LOSS ) - SECTION 988". Just entering it on K1 form with Code I, did not affect anything. In my case, it is a loss.
Thanks
