I was already on 7.7.7, but glad to report that disconnecting and reconnecting Google drive as your instructions did the trick. I was waiting to test it out over a couple of fill ups (the pandemic isn't making it easier) but glad to report that this bug is gone. Been a user since the days of buying unlock key apps and this has only been the only QOL issue I've ever faced. Thanks, Adrian! 

Hey Adrian, it's broken again. App now writes to new folders (Android, Routes and Fuelio) whenever I add an entry.