Hi there, hate being a pain - have looked into it myself with no luck so thought I'd post here.
As per the images attached, for some reason in the past 24hrs specific images won't appear. They come up with what looks to be the broken image icon in the front end and CMS displays. I'd happily re-upload said images, however (as per the image) the options to replace are greyed out.
It is only specific images too, and although the screenshotted is a GIF, another one that has gone down is a PNG with an image very similar above it which is fine.
Any assistance would be great.