Hi In my cx 3 from 2016 there was never a problem.
I had version 59.00.513 by default, then I uploaded ID7. Later I uploaded 59.00545 - 70.00.021 - 59.00.502 - and now I uploaded 70.00.100 because I replaced the USB module but I use AiO and various amenities all the time. I use an 8GB pendrive to upload modifications or a 2GB, while for music, if necessary, it reads with much larger capacity.