I have a SharePoint 2007 custom workflow running on a SharePoint custom List.
The workflow runs OK without any issues.
Th problem is that after a few days (like one to 2 months) the workflow association of the list items somehow dissapears for those list items that have "Completed" the workflow . i.e. In the list view I can't see that there was a workflow run on this item (see attached image).
All associated Tasks for that workflow are also deleted from the Tasks list (offcourse along with the History information).
So basically I don't have any proof that this item was approved using a workflow.
Note:All the items that having running workflows (i.e "In Progress") have the workflow association in tact. The workflow link is broken only for those items that have "completed" the workflow
What could be the reason for this behaviour ?