The best way to see what’s really going on with the internal cron jobs on your WordPress site would be to install the Debug Bar plugin https://www.ads-software.com/plugins/debug-bar/ and the Debug Bar Cron add-on https://www.ads-software.com/plugins/debug-bar-cron/.
This will allow you to see all the scheduled cron jobs and the time they have been scheduled or last executed.
I’ve seen WP sites where the internal cron was somehow broken – all cron jobs, daily as well as hourly were scheduled weeks in the past and never ran since then. I can’t tell you how to fix it, but if this is the case, it’s not related to WP-Lister but to your WP installation (and possibly a poorly coded plugin).
If you suspect something wrong with WP-Lister’s cron schedule, all you need to do is to visit WP-Lister -> Settings and update your settings. This will reset the cron schedule – delete the existing cron job and recreate it to be precise – but you probably have aready done that, right?
kind regards,
Matt