A couple of observations:

1. If I try to sign in using Facebook, typing in my username, does not result in anything appearing in the text box. When I try to enter it in anyway, assuming it is being entered but not displayed, it shows me that the username has not been entered.

2. The opening screen tells me to swipe left, but it shows me the next screen only when I swipe right.

I am using a Huawei Honor 5x.