Sticky custom post not displaying on top

After activating your plugin, it did give us an option to mark a post as sticky. I marked the three in the first screenshot sticky. But that’s not the first three showing on the archive page: https://staging-petronerds.kinsta.cloud/newsroom1/

screenshot: https://www.dropbox.com/s/1enxfbdkvb9b37a/Screen%20Shot%202021-04-19%20at%203.37.05%20PM.png?dl=0

Please advise what to do.

Thanks!

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