Mythic Chest Not Working

I haven’t been on in a long time and I came back to the game a week ago. I got a mythic chest and I bought another one however when I went to open them, I received nothing from them. I clicked on the 4 things but all that happened was the sound of a new item and then it exited me out of the chest and gave me nothing while using up the chest. I’m sure this is a bug but let me know what’s going on because I feel ripped off.

Yeah I got this exact same bug.