Server has an incomplete enlistment into MSX

Question

Had issues removing jobs from target server. Ran EXECUTE msdb.dbo.sp_delete_targetserver @server_name = 'targetserver', @post_defection =  0; Now job can not be added back to target server. How do cleanup up medata and add jobs to target server?
SQL Server version Microsoft SQL Server 2012 - 11.0.5522.0 (X64)
Enterprise Edition (64-bit) on Windows NT 6.3 <X64> (Build 9600: ) (Hypervisor)
EXEC dbo.sp_help_targetserver 'targetservername' --The specified @server_name ('*******') does not exist
select * from systargetservers where target_server ='******' returns no results
Enlist to target server is failing
EXEC sp_msx_enlist '*****',   '*****'
Msg 14296, Level 16, State 1, Procedure sp_msx_enlist, Line 114
This server is already enlisted into MSX '
Error Message from SQL Agent Log:
[290] Server '****' has an incomplete enlistment into MSX 'masterservername'

Answer 1

Thanks for your response. I was not doing the statements in right order. TSX cleanup up should have been in this order:
1. -- On the Target Server
EXEC msdb.dbo.sp_msx_defect;
-- from target server.If previous statement does not remove jobs cleanly then Forced_defection
EXEC dbo.sp_msx_defect @forced_defection = 1;
2. -- On Master Server
EXECUTE msdb.dbo.sp_delete_targetserver @server_name = 'targetservername', @post_defection =  0
3. -- On Target Server
EXEC dbo.sp_msx_enlist N'<MasterServerName>';
4. -- on master server
EXEC msdb.dbo.sp_add_jobserver
I have been able to cleanup TSX jobs successfully.