Spark plugin stopping messages

Greetings all,

I have developed a plugin for Spark that sends a message to and ESB. The ESB processes the message, adds a custom extension and sends the message back to the user. I have a plugin on my Openfire server that displays message traffic and I see the message come in and the processed message being sent back to the user. The problem is the user never gets the message. I have a message filter on the client that dumps incoming messages and it never sees the message. The other odd this is that once I execute this process, the user does not receive messages from other users either. The user can send messages, but never receives messages.

Any idea what I could be doing wrong?

I can provide code if necessary.

Thanks in advance for any and all help.

Earnie!