Views Problem with User Reference Field

I have a content type that has a user reference field. The user who creates the node is specified by default in the user reference field.

I have a view that displays all nodes for the logged in user where they are the referenced user. View uses a relationship to the user reference field, an argument for the UID and the user reference role, and various other filters.

The view displays properly all the nodes with the logged in user as the referenced user. However problems arise if an admin changes a referenced user. If I re-assign a node to a different user, even with the same role the node disappears from the view, regardless of the user. Anytime the reference field is reassigned or unassigned and then assigned again, it is no longer available in the view for any referenced user. So the only nodes available to te view are the nodes created by the referenced user, and then only if they have not been edited. Once they are edited they are not available to the view.

I have never experienced a problem like this and I have used these types of views to view assigned nodes on many occasions.

Can anyone offer suggestions why the user reference field changing would cause the view to not display the edited result? Any help would be appreciated.

Using the latest stable releases of D6, Views, CCK and others