I was given an iPhone 6s with iOS 9.3 and I re-installed Stack Exchange app. I had always been able to login with the old iphone but now I can't use the app because when I perform:
Log in --> Login with another OpenID --> Login using Yahoo!
then I get this error message:
Unable to log in with your OpenID provider. No OpenID endpoint found
But it seems that Yahoo! works fine if I try to login to Stack Overflow on my web browser. So, why is the app not working anymore? Shall I change some settings?