My 2017 iMac has stopped recognizing either my GX85 or my G9 when they are plugged into the USB to transfer files. This is my preference as I can do the transfer and then turn the body off to charge the battery. The 2 bodies use different types of cables, and the setup menus on the camera have NOT changed. i suspect that Crapple has effed up the USB recognition somehow with one their %^&*()$ "upgrades"... Any ideas? Maybe there is a way to force the damn USB drivers to rescan the port?