SOLVED: Preview setup wrong in referenced type

Great to hear you solved it! For anyone else who stumbles upon this thread with similar issues, it sounds like the problem was related to preview configuration in a referenced document type.

This is a common gotcha in Sanity schemas. When you're working with references and trying to display them in the Studio (like in arrays, reference inputs, or search results), each referenced document type needs its own preview configuration defined in its schema.

A typical fix looks like this:

export default {
  name: 'author',
  type: 'document',
  fields: [
    {name: 'name', type: 'string'},
    {name: 'image', type: 'image'},
  ],
  preview: {
    select: {
      title: 'name',
      media: 'image'
    }
  }
}

Common issues that cause preview problems:

• Missing preview object entirely on the referenced type
• Incorrect field paths in the select object
• Typos in field names (which you already checked!)
• Using prepare() function with incorrect return values

If you're still learning about previews, the Sanity documentation on previews covers all the details about select, prepare, and how to customize what shows up in the Studio UI.

Thanks for updating the thread with your solution - this kind of post helps the community a lot! 🙌