Why is Live Traffic on Iphone maps not showing up during navigation?

When I use Apple Maps it only shows live traffic when I'm not using the turn by turn mode. As soon as I start it to give me directions the traffic data goes away. Anyway to fix this?

Added (1). I have turned on the traffic. Hence why it shows up before I start the turn by turn. The traffic data vanishes once its giving me directions

Actually you first need to switch on the traffic condition feature. It's simple, go to the Maps app and get directions to a location or simply locate yourself on a map by tapping the arrow button in the bottom left corner.

Once you've done this, tap the icon in the bottom right corner that looks like a page turning up. This is where you access the Maps app options, including the traffic conditions option.

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