App settings not properly saved (impacts consumption and speed)

🚧 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/app-settings-not-properly-saved/
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When the app. is send to background ( i.e. for checking messages) and then return to use it again, some setting values are changed.