Change assignee (wm_task) from listDescriptionThe issue is that on updating the Assigned to in list, the client script invokes a script include utility that has a an error on update.Steps to Reproduce Change assignee (wm_task) from list viewWorkaroundThis problem has been fixed. If you are able to upgrade, review the Fixed In section to determine the latest version with a permanent fix your instance can be upgraded to.Related Problem: PRB1572678