Ugh, that sounds so annoying - sorry you had to deal with that! Have you reached out to BMW customer service yet to check if they can provide any updates? Fingers crossed they come through for you!
A couple of times when I needed to charge my car, the app would pop up saying the cord was unlocked, which felt a bit weird. Like, why the warning? But hey, the charging still worked, so I just shrugged it off and went about my day.