Snapchat stories do not fill to full screen...help?

[AC Question]

When I open a snapchat story on my ZTE Axon 7 mini (nougat), it does not expand to fullscreen, as the corners of the story are clipped. I have a screenshot of the issue, I could not link it from Drive as my post was marked as spam.

 

[B. Diddy]

Moved to the Snapchat forum.