The fact that at least one says N/A and others say Coronavirus and others don't have any input on line 3 leads me to believe that there is some input question somewhere in the process of the software walking you through the filing process that is resulting in that input being entered. Mine didn't have anything entered on line 3 and I didn't have to do anything to remove it. I also don't remember answering anything specific about that form. Maybe depending on what options you answer yes or no to there is some logic that prompts for a question that creates that line 3 entry. The fact that it's not the same on all forms means it's coming from somewhere.
