why this insert statement cannot insert values in it's second iteration? - sql

Question

I have this reasonably sized stored procedure that accepts 3 collections two UDTT collection and one CSV collection.
I have passed the following values to test stored procedure. However the problems occurred in one small master table called EmpDesignations with 5 columns. There is a loop I used in the store procedure to insert values to EmpDesignations. The loop is required because the values are extracted from the CSV string. As expected it does iterate 2 times with two sets of values. The first iteration the data was inserted successfully but in the second iteration data was not inserted. I have checked weather the data is empty but those variables #tmpEmpID and #tmp contain data. So cannot figure out the problem
The EmpDesignations table definition is
EmpID PK, FK not null
DesigID PK, FK not null
IsValid int not null
UpdtDT datetime not null containts to getDate()
AuthID int not null  EmpID
here is the snapshot of the table columns and types
In the first iteration the passing values to the insert statement is shown in the watch window
As you can see, ##rowcount is 1 so worked in the first round!
In the following watch shows the passing values to the insert statement, this is in the second iteration:
But the ##rowcount is not 1 therefore the control rollbacks all insertions
Here is a video link of the debugging of the insert statement
here is the video of THE SECOND INSERT statement debugging
Table definition is correct, the number of values passed matches the number of input columns, and the variables are filled with values in both iterations, so what could be the problem???
here is the script that was generated by SQL server for the table EmpDesignations
USE [SMSV100]
GO
/****** Object: Table [dbo].[EmpDesignations] Script Date: 04/12/2014 08:50:23 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[EmpDesignations](
[EmpID] [int] NOT NULL,
[DesigID] [int] NOT NULL,
[IsValid] [int] NOT NULL,
[UpdtDT] [datetime] NOT NULL,
[AuthID] [int] NOT NULL,
CONSTRAINT [PK_EmpDesignations] PRIMARY KEY CLUSTERED
(
[EmpID] ASC,
[DesigID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
ALTER TABLE [dbo].[EmpDesignations] WITH CHECK ADD CONSTRAINT [FK_EmpDesignations_Designations] FOREIGN KEY([DesigID])
REFERENCES [dbo].[Designations] ([DesigID])
GO
ALTER TABLE [dbo].[EmpDesignations] CHECK CONSTRAINT [FK_EmpDesignations_Designations]
GO
ALTER TABLE [dbo].[EmpDesignations] WITH CHECK ADD CONSTRAINT [FK_EmpDesignations_Employees] FOREIGN KEY([EmpID])
REFERENCES [dbo].[Employees] ([EmpID])
GO
ALTER TABLE [dbo].[EmpDesignations] CHECK CONSTRAINT [FK_EmpDesignations_Employees]
GO
ALTER TABLE [dbo].[EmpDesignations] ADD CONSTRAINT [DF_EmpDesignations_UpdtDT] DEFAULT (getdate()) FOR [UpdtDT]
GO
thanks