Thank you, will look into white screen issue. Are you on iOS?
QR code works only when you scan private keys not public ones, sometimes that might an issue.
Yes voting slider is available in every post page, just tap and hold voting button for 0.5 seconds and it will show up.
Yes using iOS!
I will try again today and let you know. I clicked show private key, but it looked like the QR code did not change. It also may have picked up the QR code of the one above or below as I could only get it to read when I was about 12-18 inches away from the screen!
Not running the latest version of iOS (currently 10.0.2).
I figured the slider was definitely just user error.
I love the typographical emphasis and other options when replying!