Car battery percent not updating during navigation.

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https://abrp.upvoty.com/b/report-a-bug/car-battery-percent-not-updating-during-navigation/
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When navigating the car battery is a lot higher over an 1hr drive it got as far as 20-25% out. I have linked tronity and it was showing the correct charge. This was then affecting the route planning and caused us all sorts of issues when travelling. The way around was having to stop the navigation then restart while in mid trip. The reference value for the car is 4.4 kms/kWh. This is actually higher than the car reads yet the percentage was going down a lot faster on the app. Is there a way to fix this. Is this a bug? Thanks