Overview
Once upon a time, the amount of seconds it takes for the rocket to launch was randomized. Unfortunately, sometimes the rocket would not launch at all, leading to me commenting the randomization out in the spec. I hope to bring back the randomization, but it's been a low priority item.
Action Items
Since it's been a while, I don't have steps to reproduce, so that would be the first step. The initial bug report might be a useful starting reference point. If the bug seems to happen sufficiently rarely (say, not a single time in ten seeds), we can probably just leave it until someone reports it again (testing in prod is the best way to test).
Extra Considerations
This isn't exactly a core randomization, so another path would be to not include it in the first place if it turns out to be pesky enough (like reproducible but we can't find the cause).