Is there another way to re-file my 2018 tax changes by Netfile, without cancelling the overrides as I did on m y 2017 tax return accepted by Netfile?

I sent a Re-file for my 2017 tax return, with some overrides on it, for a fee to re-file and it went thru with the overrides. I made the exact changes on my 2018 on the same line, with overrides on it, but it is telling me to fix and cancel the overrides before I send them. I notice that my overrides color for 2017 turned green before I sent it, but for 2018 it remained RED, so maybe that is the difference. Please advise.