I thought this might be the solution, but there is no choice for "No Entry" for box 20 of the 2020 Schedule K-1, as I again realized when going to the box/drop down menu when pointing the red "Z" in Forms mode. The first choice in that menu is "U" - "Reserved" which also results in an error message to be corrected if used. After multiple attempts alternating between modes, I just decided to delete the original K-1 form information and re-enter a new one, which fixed the problem, but had hoped not to have to go through that.
