I am using API v2, I am allowed to login using https screen, then I get to the xxxx would like to access to its own folders, Apps xxxx inside your Dropbox. learn more, with two buttons; cancel and Allow...I select allow, get a blue line, but it hangs and no access to the drop box is allowed... this problem appeared with an upgrade to the apple operating systems... problem works with xcode and happens both on 9.4 and 10.0...please help... I don't want to change to AWS...thanks