I have a new BMW connected cradle which I'm using with an iPhone 12 pro max. I did have an Otterbox case which made it too big for the cradle so I switched to a slim case which was fine. Initially all was well and the phone charged wirelessly wit the green light on. After a while I noticed a flashing amber light coming on then the light went green again and the phone continued charging. Lately however the green light has been going off, the amber light flashes, then all lights go out, and the phone stops charging, only to start charging a few minutes later. Surely, this can't be normal. Has anybody else experienced this or am I missing something?