When Your Short-Story is a Novel

(Standard advice used to be for writers to write short stories, then move to novels. I don’t think I hear that as much anymore. I was naturally a novel writer and was cramming too much into a short story and I see other people doing the same thing. Some people, for whatever reason, are more naturally inclined to write novels. It’s not a short story just because it’s short and you want it to be a short story.)

You spend too much time telling, to compress events.
Too many povs
Scenes aren’t fully developed.
Characters are too stereotypical.
Conflict is not fully resolved.
World-building is too complex to explain in a page or two
Too many plot threads.
What happens doesn’t make sense without a larger context.
It is really a first chapter in that a character decides to do something which isn’t in the story.
It’s just a synopsis or a story or a prolog.