Add a new vehicle doesn't work

🚧 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/add-a-new-vehicle-doesnt-work/
———————————————————————————
I'm using the Android app, and it seems to remember only my Tesla. I can temporarily select my Chevy Bolt via "add new car," and while it then appears to plan the next trip with the Bolt, the Bolt never appears on my list of vehicles, and I never see the buttons to add configurations for the Bolt or turn on live data. I thought this might be a limitation of the free version, but I also see no option to delete my Tesla from the saved vehicle list, thus there's no way I can get live data working with my Bolt.