Yes, the default expiration is set to 12/31/2019 but it is not working. The default is being ignored. When a new listing is created the expiration date will set to the parameters found in the package (12 months from now for example). That is why I set the package to 0 days, hoping that would work.
I can manually edit each listing and change the expiration to 12/31/2019 but every time an admin or the user makes a change and saves the listing, the expiration automatically decreases by one day (12/30, 12/29, 12/28 etc.) With each save, days are being lost on the expiration date.
Does this clear it up?