Hello, for the past 2-3 days, I noticed that when I connected my iPhone 6s+ to my MBP and launched Photos, I got a small window asking me to unlock iPhone. There is also a message of No Photos. I have to press the home button of my iPhone, choose other items on the left of the Photo's application and then click iPhone again for the photos to show up. This could be caused by the latest update of iOS and Sierra. Know how to fix this issue?