Forwarding tasks using UWL

Hello,

We are working with EP7 SP13.

We have problems when we try to forward tasks using the UWL. From main page (without opening the task), we can forward it clicking on the forward button (it displays a new window asking the user ID).

However, if we open the task and try to forward it, when we click on the forward button, the action does not take effect (it does not display another window asking the user ID).

We have created new xml configuration files for these tasks, setting their features.

We have reviewed our xml files but we do not appreciate any error. Where is the problem?

Thanks in advance,

Samantha.