I have noticed that date oriented filters in Office 365 Query List Actions don't behave in the same manner as the normal Query List Action.  Example:

I have a query list action that returns items that are less than a specified date variable.  This works consistently.

The same exact query in the Office 365 Query List Action returns nothing.

The Office 365 list query does work with other filters, just not a date filter that is less than.  Has anyone else seen that?