Under V1.15, my Win10 laptop doesn't see the camera when it's plugged into a USB port. That is, there's no sound notification and the File Explorer doesn't show the camera as an SD. At the same time, the camera screen shows "Mass Storage" and the camera draws power from the port. Related, the SJ7 screen shows Mass Storage in red, and Ext. Power, and Charge in white. I assume the SJ7 is, in effect, an SD in "Mass Storage", accepts external power in Ext. Power, and just charges in Charge. If I plug into my external battery, the battery icon shows it's charging, but there's no Ext. Power or Charge displayed. What's going on here?