This happened to me a few times already and I am getting frustrated.
It says in chat I got a rare key, but I never got one.

Any ideas?

 

Yea, same with me, I got a rare key, and I never got it in my inventory. I'm now sad ;-;
Anyways @CypriotMerkz fix this please?

 

Nope, I tried everything, my rare key never appeared again ;-;

 

happens to me too in about 5 or 10 min you get the key ;)

 

When it says that, right click the chest with your empty hand. It's done this to me a few times, and I've just clicked the chest. It should act as if the key is there.

 

I know that, but it still doesn't work.