I'm wanting to put a posts navigation section on one of my pages. It shows up fine in the editor, but when viewed on site the featured images in the thumbnails are utterly gone. Quick google search says that there may be a jetpack conflict, but my jetpack settings that were referred to weren't on. I've cleared my cache. I've tried resizing the images within the posts widget, large – thumbnail. Not sure what else to do! Ideas would be appreciated, many thanks!