I've got a problem with UWL functionality. I configured specified custom configuration xml for custom attributes in custom tab display. It worked fine about 1 week ago. At the moment there is empty value for custom attributes even the container in the backend has set this values. Steps which I've done:
1. Re-register backend system and item types
2. Check configuration on DEV system and it works fine! I have problem only on TST and PRD system
3. Standard parameters of work item like: subject, dueDate etc displays correctly
4. Import DEV xml configuration file on TST system- doesn't help
5. Recreate custom tab- doesn't work
6. Restart Portal- doesn't help
Its very important, that it happens only for work items with COMPLETED status on workflow procces (completedTask in UWL). The same parameters on the other tabs from workflow status: STARTED- display fine. There're a problems only for completed tasks.