Blitz now has an SSL certificate. That’s great for security! However it’s also bad news for some embeds. And because this site has a certificate it won’t embed anything from a site that doesn’t.
When embedding an image, ensure the link starts with https:// and not http://
It seems you can only bold one letter in a word if it’s the first one. And you can’t bold any letters in the middle or at the end of the word, without starting from the first one.