Cannot retrieve inserted id - no primary key was found

I'm getting this error "Cannot retrieve inserted id - no primary key was found." when trying to create a new record using editor.
I've searched the forums and found similar issues, but can't seem to apply these responses to a resolution:

http://mail.datatables.net/forums/discussion/45626/cannot-retrieve-inserted-id-no-primary-key-was-found
https://datatables.net/forums/discussion/53576/cannot-retrieve-inserted-id-no-primary-key-was-found
http://mail.datatables.net/forums/discussion/59623/cannot-retrieve-inserted-id

Our use case involves:
* .NET 6.0
* Editor 2.0.6
* SQL Server 2019

My web page has 2 tabs:
* UserInformation table to store personal info of users
* A SQL view joining 2 tables - UserInformation and UserAccess. The view edits Email and Access columns from UserAccess table using select dropdowns. For now I can edit current records, but have issue with creating a new one.

View model:

public class UserInfoAndAccessModel
    {
        public int UserAccessId { set; get; }   // PK of UserAccess table
        public string? FirstName { set; get; }
        public string? LastName { set; get; }
        public string? Title { set; get; }
        public string? Email { set; get; }
        public string? Access { set; get; }

    }

UserInformation model:

public class UserInformationModel
    {
        public int UserId { set; get; }
        public string? FirstName { set; get; }
        public string? LastName { set; get; }
        public string? Title { set; get; }
        public string? Email { set; get; }

    }

UserAccess model:

 public class UserAccessModel
    {
        public int UserAccessId { set; get; }
        public string? Email { set; get; }
        public string? Access { set; get; }

    }

Executing insert query directly in SQL Server did create new data. It just did not work from the web app. SQL tracker showed that the query was completed when I hit the create button, just no record was added, and the "no primary key" error popped up. Below is the insert query that was recorded:

exec sp_executesql N'INSERT INTO  [VW_UserInfoAndAccess]  ( [Access], [Email] ) VALUES (  @Access,  @Email )',N'@Access nvarchar(7),@Email nvarchar(24)',@Access=N'Austria',@Email=N'abc@gmail.com'

View controller:

    public class UserInfoAndAccessController : ControllerBase
    {
        [HttpGet]
        [HttpPost]
        public ActionResult UserInfoAndAccess()
        {
            string? cnStr = Program.ConnectionString; 
            using (var db = new Database("sqlserver", cnStr))
            {
                var editor = new Editor(db, "VW_UserInfoAndAccess", "UserAccessId")
                    .Model<UserInfoAndAccessModel>("VW_UserInfoAndAccess")

                    // Access column refers to CountryName column
                    .Field(new Field("VW_UserInfoAndAccess.Access").Options("Country", "CountryName", "CountryName")
                        .Validator(Validation.DbValues())
                    )
                    .Field(new Field("Country.CountryName").Set(false))
                    .LeftJoin("Country", "Country.CountryName = VW_UserInfoAndAccess.Access")

                    // UserAccess's Email refers to UserInformation's Email
                    .Field(new Field("VW_UserInfoAndAccess.Email").Options("UserInformation", "Email", "Email")
                        .Validator(Validation.DbValues())
                    )
                    .Field(new Field("UserInformation.Email").Set(false))
                    .LeftJoin("UserInformation", "UserInformation.Email = VW_UserInfoAndAccess.Email");
               
                 // Return data
                return new JsonResult(editor.Process(Request).Data());

            }
}

View js:

        var editor = new $.fn.dataTable.Editor({
            ajax: {
                "url": '/api/UserInfoAndAccess',
                "type": 'POST'
            },
            table: '#UserInfoAndAccess',
            fields: [
                {
                    "label": "Email",
                    "name": "VW_UserInfoAndAccess.Email",
                    "type": "select"
                },
                {
                    "label": "Access",
                    "name": "VW_UserInfoAndAccess.Access",
                    "type": "select"
                }
            ]
        });

        var table = $('#UserInfoAndAccess').DataTable({
            dom: 'Bfiprt',
            orderCellsTop: true,
            fixedHeader: true,
            "lengthMenu": [[12, 24, 36, 48, 60, -1], [12, 24, 36, 48, 60, "All"]],
            "pageLength": 60,

            ajax: {
                "url": '/api/UserInfoAndAccess',
                "type": 'POST'
            },
            columns: [
                {
                    "data": "VW_UserInfoAndAccess.FirstName"
                },
                {
                    "data": "VW_UserInfoAndAccess.LastName"
                },
                {
                    "data": "VW_UserInfoAndAccess.Title"
                },
                {
                    "data": "UserInformation.Email",
                    "editField": "VW_UserInfoAndAccess.Email"
                },
                {
                    "data": "Country.CountryName",
                    "editField": "VW_UserInfoAndAccess.Access"
                },
            ],
            select: true,
            lengthChange: false,
            buttons: [
                { extend: "create", editor: editor },
                { extend: "edit", editor: editor },
                { extend: "remove", editor: editor }
            ],
        });

Any ideas what I'm doing wrong? Many thanks in advance for any help.