SPA React not displaying Custom Components

I have spent a ton of time and combed through the docs to figure out this. My custom built react component is not displaying in the editor, ever. It is showing up on the http://localhost:4502/content/wknd-events/react.model.json and in the CXR/DE. Feel like I have tried everything and I am not seeing any resources for debugging this/ a workaround.  The custom-built components also do not render in ANY AEM instance but if I pull up the local build (localhost:3000) all of the items that I did add appear.