business data-task data problem in 8.0 to 8.2

We have a project which is implemented in 8.0 and we are upgrading it to 8.2. We have a problem with business data-task data because task data is not seen in the table even if task info can be seen. The table is the result of my custom search task. I add an attachment and you can see how table is displaying.Task id is element of task info, so it is seen in the table. Also the last 3 columns are coming from task info so can be seen. Other columns are not seen because they are coming from task data. I tired to recreate the provider again and add a new table binding to this new provider but it did not solve this issue.Do you have any idea ?
8.2 task data is missing.bmp (3.42 MB)