Hextech chest dissapeared when given option to open 2 with one key

I had 2 chests today (4/27/2018). I got an honor capsule which gave me 4 key frags (woohoo!) - so I created a key. After the key was created, it automatically highlighted my hextech chest and had 2 buttons. Open and Open 2. I was like cool - dunno why it says 2, so I clicked it, and it opened the chest and the other disappeared. The chest did contain a chest - so that made up for it