No, it's not a software issue. As mentioned above, some USB 3.0 are poorly shielded acts as antennas and end up causing interference on 2.4GHz. We tried our best to shield things internally and even changed the connector to reduce the interference, but with the wrong cable, it still happens. It's something affecting all devices with USB 3.0 and Wi-Fi/Bluetooth/ZigBee/anything 2.4GHz if you're using a bad cable. As ZigBee is using very narrow bandwidth it seems to be more sensitive though.