Odd error when using a where query and Number types

Hi

I have fields of ‘lat’ and ‘lng’ as Numbers in my collection.
If I query for them using a where query they always return null.

e.g.

query {
  strapi {
   categories(locale:"en",where:{slug:"Dentist"}) {
      slug
      title
      places {
        id
        name
     
        slug
        address_line_1
       
        lat
        lng
        categories {
          title
          id
        }

      }
    }
  }
}

The results of the above query always give me Null values.

If I remove this ‘where’ then the lat and lng values are correct.

Jon