That’s a deep cut. (And salt on the wound.)
IIUC, the fact that they reprinted all the discs and manually replaced all the boxed, ready-to-ship discs to avoid any chance of destroying someone's data wound up eating most of the profits from Myth II.
That, in turn, led to the situation where they were too cash-strapped to finish Halo on their own, resulting in the infamous moment where Apple decided to buy them after all just a couple days too late: https://arstechnica.com/gaming/2010/10/jobs-turned-down-bung...
I still fantasize about an Oni-meets-Mirror's-Edge freerunning / martial arts game.
Maybe there'd have been one if not for that bug.
Not sure what it was like towards the end of the Blam/Midnight/Slipspace engine era but at the beginning it was the dictionary definition of 'Technical debt'.