Bugs nobody had time to fix

When a game company is fixing bugs, the development team goes through a process called “triage” in which it labels each error based on how significant it is. The highest, “A” or “1” level bugs, are usually the ones that break a game entirely. If you find a bug in a video game, the developers have probably found it too—it’s just a “C” level bug that nobody had the time (or inclination) to fix before launch.

Blood, Sweat, and Pixels, by Jason Schreier