When we action the task from the Actions (Action Bar), the task gets moved automatically from the Inbox list.

However, when we action from the SmartForm, the task doesn't move from the Task list in Workspace > Inbox and clicking on the item again throws an error (Worklist item could not be opened.)

Task completed from Form should auto-refresh the task list on Workspace, like the functionality when actioned from Action Bar

Else, its actually misleading the end user, that there is a task still available in Task list, when we use the out of box workspace as the landing Inbox