Same issue. Running Maps version 10.6.1 and AA version 3.8. Though I'm sure is the problem with maps. Just reported it to Google. Let's see if that helps.
Here is the thing that bothers me for the last couple of days: fit some reason that awesome feature stopped working for my Android Auto, while it still works for the built-in Nav. Not sure if I accidently disabled it in my Civic or in my Android. Checked various options, including "Turn by turn"...