I wanted to reply that I had an empty line 5a on the new 941 Rev 4-2020 (2020-quarter2). While all my checking showed that I was on R7 and had all the updates and handled all of that already, I gave it one more try, doing the update exactly as instructed here and then restarted my computer. (Actually I made a backup of my data file first, because if this didn't work I was going to go in and start playing with how I had setup my accounts for the COVID-19 Credits [ERC, new FMLA/sick, etc] to see if that was cancelling out this line). I opened quickbooks and noticed a slightly different layout, now showing PPP information across the top of the main screen, and when I opened the 941 the proper SS wages were populated on line 5a.