Just to be clear. Your Flare Mini when Bluetooth connected in the app doesn’t connect?
Have you tried the usual we’d recommend if something doesn’t work of reboot, clear cache, uninstall/reinstall?
If what you say is correct then they’ve added app support for the future unreleased undocumented version of Flare Mini. At time of writing you don’t have the old Flare Mini as the new Flare Mini isn’t out nor announced.