Sorry for not testing this out a bit more when you first posted. But this was an issue with our macros in the blog content module. We've pushed out a fix so this should be working again.
Can you link me to where you're trying to use this? Without a live page or template, I'm really not sure what the goal is or what's working vs. not working. But if I have a page to look at, I'm happy to take a closer look.
Sorry for not testing this out a bit more when you first posted. But this was an issue with our macros in the blog content module. We've pushed out a fix so this should be working again.