I use Asana lists for myself and have over five years. I’ve never had any trouble. Over the holiday, my daily lists have disappeared. Even when I search they’re not coming up. What happened? Is there a way to get them Back?
Welcome to the Asana Community Forum @Colleen_McElvogue 
In order to be able to assist you can you please elaborate on what you mean by lists, which lists exactly? List view in projects, “My task” lists or something else?
In case you refer to “My tasks” as a first step I recommend checking whether you have any filters or group by enabled which would affect the way the tasks are displayed
