If your scheduled tasks are working, then I'd suggest ruling out a modification. Disable them for an hour (or at least around the time the views should be updated) and see if that fixes it.
Note: To temporarily disable the plugin system, edit config.php and add this line right under <?php
PHP Code:
define('DISABLE_HOOKS', true);
If that still doesn't fix the issue, then you may want to put in a support ticket.