DBCC CHECKIDENT ('table name', RESEED, 20000) not working When I run the script 

DBCC CHECKIDENT ('table name', RESEED, 20000)


the output of the message is 


  Checking identity information: current identity value '200000', current
   column value '200000'. DBCC Execution completed. If DBCC printed error
   messages, contact your system administrator.


When I query the identity value by running 

SELECT IDENT_CURRENT('table_name')


it is showing up as 200000 as expected, however, when the developer inserts records into the table, it's not using the new reseeded value.

Is there something obvious I'm missing?
It turns out after multiple conversations with the developers of this application using the table that there was a 'hidden' stored procedure that was grabbing the maximum value of the ID column in the table and adding an arbitrary number to it then issuing an IDENTITY_INSERT statement resulting in the newly reseeded value.