animuson of the Stack Overflow team said here:
Blog Overflow is actually going to be shutting down completely soon, so it doesn't make sense for us to invest time in fixing any bugs for it. We'll be reaching out to all the individual communities who currently have a blog on their site's Meta over the coming weeks to discuss whether they want to let their blog die or transfer it to an alternate blogging platform and maintaining it on their own...
To have more time for deciding and doing things, I already ask here now: do we want to continue with the blog? What is your opinion?