"Stay a While and Listen" was not granted
I reset the campaign and replayed it all. Every time I finished a mission, I played in the home realm for at least 11 minutes. I did this after finishing the last mission as well. Home Realm logged over 2.5 hours yet the "Stay a While and Listen" achievement didn't get rewarded. I'm not sure what is needed to debug this...
The first line should always trigger at 5 minutes with the second 5 minutes after that. you must fully listen to the line for it to count.
Unfortunately you will just have to go back through the campaign and ensure that you listen to each line.