Issue:

This is a two-part issue.  Set-up: a Course Blog is created that is both graded and allows anonymous posts - and a student or instructor creates an anonymous post.  When Edit Mode is ON, the error "Renderer template processing failed. " displays and none of the entries can be viewed.  When Edit Mode is OFF, the posts may be viewed but the instructor cannot grade the blog within the blog.

Workaround:

No workaround at this time.  Avoid this problem when creating a graded blog; do not allow Anonymous Comments and Posts.