How To Find Document With Child Array Where Child Has An Id

MongoDB Atlas Atlas Search
4

someone else told me I can use elemMatch for this scenario, & it worked in MongoDb Playground! But when I tried the same query using the “real” json structure of a document in the Atlas Web UI & in the C# code, the query returns 0 documents. Here’s the query they gave me:

{
  kids: {
    $elemMatch: {
      _id: "Test1",
      "grandkids.name": "Bloh"
    }
  }
}