Why glitches/bugs in games only affect some copies instead of all of them if they all contain the same code

Question

Why glitches/bugs in games only affect some copies instead of all of them if they all contain the same code

In: Technology

Answer 1

Because they don’t all contain the same code. Glitches get discovered and reported then they get patched in the next update. That updated version of the game doesn’t have the glitch anymore because the code has been patched.