I’m having the same issue. We updated to the new version of AdRotate 4.11.1 last week, we are using the most up-to-date version of WordPress too. When we try to create an advert the date is saving to 1970. If you go back in, change the date and re-save it we still get 1970 – so we can’t get the ad to show on the website.
I don’t understand the instructions above on how to re-download the plugin if it’s already up-to-date. Can you help?