Oblivion Key not dropping

[ponyryov]

I can't clear the choco ice cream because the Keymaster O is not dropping the key to unlock the next stage.
I've tried doing a rebirth and I've tried rebooting the computer.

Has this happened to anyone else?
How did you get past it?

[ponyryov]

Okay, so I did not know that kills made from away gains did not trigger the key.
I had to stay on the screen and watch the little red bar go down until a kill was actively registered.
I didn't realize just how much the ice cream was slowing down my on screen kills because I was still registering over a million away gains per hour.