Blog Post Macro throws com.atlassian.renderer.v2.macro.MacroException

Symptoms:

Upon today's OnDemand release, any Confluence page that has a blog post macro produces the following error:

 
'blog-posts' : com.atlassian.renderer.v2.macro.MacroException 

Workaround:

We are currently investigating a fix for this issue, and will apply it accordingly. In the meantime please watch this ticket as we will update it with more information as it becomes available.