Research Ruined My Story

Has anyone done research for a story and it killed the idea? I have had that recently happened. All I had was an opening scene that was swimming around in my head and I wrote it down but as I finished that scene I thought, “This could be bigger. This could be a novel.” So, I started to research some passed legends and myths to help build the world. It was really helpful when it came to building the character’s personally and look but it destroyed my plot.
I started to outline the first idea with my new found research and my story fell apart. I discovered my idea was weak and I had to scrap my original idea. I’ve since put the story down. I think I have to step away from the narrative so I can distance myself from my old plan. Problem, I can’t help but drift back to the past concept. It’s frustrating.
I’ve been trying way to move on and one solution is to write my first opening scene as a short story. I’m hoping if I give this brainchild a voice I can move on from the first idea and still weave a story from the research.
Have you had this happen? How do you move past broken ideas that seem to be causing trouble with your writing?