If you see a post with a blurry image, it's probably an older post from a different server. When you view the same post again later the proper clear image will usually appear. This happens because servers store copies of images from other servers in their cache, but empty their cache after a certain period and only fetch an image again if needed. It may also happen if there's a problem with a server's media storage provider. Your admin can help if that's the case. #FediTips #Mastodon