I’ve uploaded multiple image sizes for featured image in the Content Modules. I’ve tried 448 x 448, 800 x 800, and 1024 x 1024. Regardless of what size I use, the images display blurry. I haven’t found good documentation on what size these images need to be. You can view the blurry images on the site provided (go down to #break the stigma image) I’ve wasted so much time on this… Can you please help?
Don’t forget to use Force Regenerate Thumbnails plugin after you set the new image sizes. The plugin will refresh already uploaded images for you.
Make sure to actually run the refresh functionality after you activate the plugin: navigate to Tools → Force Regenerate Thumbnails and click the Regenerate All Thumbnails button.
(After the Force Regenerate Thumbnails plugin has done its job, you no longer need it and you can uninstall it – unless you change the media sizes again.)