Error adding table column

Hello to all,
I’m trying to add a column to a table that not use the default schema in SqlServer e SqlLite. The table POCO have the attribute “Schema” set, when I execute the AddColumn method I receive this error: “Cannot find the object “Identities” because it does not exist or you do not have permissions”.
I’m doing something wrong or is it a not supported function? Currently i’m using ServiceStack 4.5.12.

This is the poco definition:

public class Identity : IIdentity
    public string RegisterNumber { get; set; }


This is the schema upgrade implementation:

using (var ctx = dbFactory.OpenDbConnection())
    if (!ctx.ColumnExists<Identity>(c => c.RegisterNumber))
        ctx.AddColumn<Identity>(c => c.RegisterNumber);

Thanks to all

Can you show you database tables definitions? Do you have table Identity or Identities? Does the table belong to schema core in SQL server? If execute

SELECT * FROM [core].[Identities];
SELECT * FROM [core].[Identity];

what is returned by SQL Server?

I have the table [core].[Identities].

CREATE TABLE [core].[Identities](
	[Id] [int] IDENTITY(1,1) NOT NULL,
	[IdentityCode] [nvarchar](50) NOT NULL,
	[IdentityTypeId] [int] NOT NULL,
	[RegisterNumber] [nvarchar](15) NULL,

In my opinion the table schema attribute isn’t considered by the AddColumn method.

The schema name should now be included in DDL statements in this commit. This change is available from v5 that’s now available on MyGet. Please review v5 changes before upgrading.