That is normal operation for the wireless charger. For most, it is generally useless. You will get some trips that it works well, some where it doesn't. I believe Mazda is aware of it. TO be fair, many car wireless chargers have the same exact complaint, so this is not exclusive to Mazda. Just sucks that it is one of the main features they advertise for one of the top trims and it is pretty much non-functional.