Easy Slider not working with 3.5

I’ve found a workaround for this until the plugin is updated. Add images in the media library, then from the media library page, attach them to the page where the slideshow is. If you want them in a specific order, you’ll need to upload them one by one in the order that you’d like them to show, and be sure your gallery settings are set to “Order Slides By: Menu Order”.

Hope this helps!