Is this not a checkmate?

Well apparently this site doesn't like it when you try to post images of the game, even though they provide the functionality right in the message. No way to edit the message either. SO LAME!

Here's the game link if anyone wants to take a look https://www.chess.com/daily/game/845356514
Pretty sure this is mate for white. The black king is in check with no way to escape or capture the attacker and it is Black's move. Is there something I'm missing? Or is the game engine just having trouble with analysis?