Every story is a series of events that hopefully lead from one to another. Something happens and because of that other actions need to be taken.
But even when thing logically follow on from one to the next, that doesn’t necessarily make for an interesting story. Just because there’s a good reason for what a character’s doing, that isn’t necessarily enough to make it worth reading about.
You can very easily get into a groove that turns into a rut. What the character needs to do next seems so obvious the writer doesn’t take a moment to consider whether that’s a good thing.