Saving User Data

I backed up and restored a connection from one site to another. So basically all the elements of the connection are the same except the name of the table. This was working in the original site and is not working now.
The connection reads the user file and presents a list. The user can click on an Edit link and display a form with the pertinent fields. Once finished the user clicks the Save Changes button. However, I am getting a "failed" message and the changes aren't being saved.
I have been over this many times and kind find the problem. I can see that the form is displaying the correct information and I can see the debug information below it. But I can't see what is being passed to the save function no matter where I put another debug.
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Any suggestions?
Karen

Well have you updated the name of the table in your save data actions?

Yes, I have updated the table name.

Alli can think then is either clear cache or delete save data action and remakeure it

Thanks for the suggestion. Unfortunately it didn't work.
So I backed up a new copy from the original site and restored it to the second site. That worked. Still a mystery.