Blog image won’t work, help?

Trying SO hard to upload an image into a blog. It shows up in the editing page, but not when it’s actually published. Just gives me the little question mark image.

The image isn’t from Imgur as I’ve seen that mentioned as a possible cause for malfunction before, I’ve tried uploading the URL like 5 different ways and via Flickr was the only one to work, but again only showed up while editing. 

Help!