Issue with Automobile Routing

I just got the Fenix 5X last week and I set up a 'Car' activity with a routing activity of 'Automobile' for turn-by-turn directions. It works ok for the most part but on my last two trips I've observed a glitch where the map displays a left- or right-hand turn, but the prompt says to keep left on the current road. Has anyone else experienced this? I have yet to log this issue with Garmin but here's the rest of my config:

OS Ver=4.10
Maps enabled for this activity: Worldwide DEM Basemap, Topo Canada v4 South, Topo Canada v4 North
Use Sys. Settings=On

Routing:
Activity=Automobile
Calculation Method=Minimize Time
Avoidances=U-Turns and Ferries
GPS: Normal (GPS Only)