If you don't see any tasks in the your task queue on the creative it is most likely that you have a filter selected on the left-hand side. If any writer or producer is highlighted, SPARC Media Hub will only display current tasks that is being worked on by that writer or producer.
If a task is reassigned, completed or not selected in your stats to appear you will not see any results. Simply uncheck that writer/producer/local talent and your dashboard will display results for all producers and writers.
If still no results appear check all other filters in the left-hand menu to ensure you have no disabled a certain status or market. You will know if the status or market is disabled by a strikethrough the name.