Tragically, the same narrative issue that occurs in any setting... Also the name of a video game or three! Deux ex machina (https://en.wikipedia.org/wiki/Deus_ex_machina). ".... is a plot device whereby a seemingly unsolvable problem in a story is suddenly or abruptly resolved by an unexpected and unlikely occurrence. Its function is generally to resolve an otherwise irresolvable plot situation...."
Tragically, the same narrative issue that occurs in any setting... Also the name of a video game or three! Deux ex machina (https://en.wikipedia.org/wiki/Deus_ex_machina). ".... is a plot device whereby a seemingly unsolvable problem in a story is suddenly or abruptly resolved by an unexpected and unlikely occurrence. Its function is generally to resolve an otherwise irresolvable plot situation...."