We occasionally have some hiccups with our system for various reasons, but it will some times cause Forms instances that have kicked off a Workflow to get hung up at the step. The instance does not show Suspended, but still shows in progress. To find these instances we create a report, export to Excel and then filter based on Assigned To. We export to Excel because we are not able to add a filter to the report for the Assigned To column. We would like to be able to filter based on the Assigned To column based on a specific value or if it is empty or not empty.