just updated and plugin no longer works

I just updated the plugin, and posts from categories other than the one I have selected are appearing on the front page of the site. The plugin settings seem accurate–when I go to Customize, include is selected and the category Event is selected. When I go to the website, posts from Event and Past Events are appearing (past events are the ones from Jan and Feb, which were not appearing before the update).

I tried clearing the cache and I tried another browser. No difference. I disabled all other plugins. Still not working. I’m running WordPress 5.0.3 with the Simply Read theme. I switched to the WordPress 2018 theme. Still not working.

The page I need help with: [log in to see the link]