Start SoC changes after begin of navigation

🚧 THIS IS A TICKET MIGRATED FROM UPVOTY. The original ticket and comments will be available for a limited time over at:
https://abrp.upvoty.com/b/report-a-bug/start-soc-changes-after-begin-of-navigation/
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After setting my start SoC to (for example) 75%, planning goes as planned and the app shows all I want to know about the route. As soon as I begin navigating, the SoC doesn't adopt to the navigation and is set to a random SoC like the one showed in the screenshots (90%). Like this, the app isn't helpful at all. I can't plan any trips like that. Any solutions?