Thank you for your answer. Just a comment. I knew of this issue with e-filing, I think I read somewhere Feb 20th 2020 was target to open 2018 to efile due to extenders. So this morning I first "updated ProSeries" 2018. It said "NO UPDATES". I went to E-file and told not current. I went to this website and found your article, used the update from within proseried (I used windows start menu to update. Now it is updating. Sounds like a bug in the software? It did work using your work around. I hope the developers fix this flaw