When no templates are configured, the user is presented with the following screen:
Please notice that there are two sections just saying that there is nothing to display.
Recommended fix: if there are no templates for tasks and no tasks to show (fresh install scenario) please do not show the empty list of tasks and associated filters.
Open question: is this a valid scenario where there are no templates configured for tasks, but there are still some tasks (finished, idle or running) created prior to template being edited / deleted?