Interestingly it's actually not a flaw, the key appears after a while if you're not in the room (and don't have one): https://news.ycombinator.com/item?id=1746

Interestingly it's actually not a flaw, the key appears after a while if you're not in the room (and don't have one): https://news.ycombinator.com/item?id=17460392 https://news.ycombinator.com/item?id=17460392 I assume the agent somehow found this out and developed the behavior of going in and out of the room until the key shows up (which, with enough agent randomness it apparently will).