User's own discussion posts not showing up in a group's stream.

One of my users has recently been unable to view his own posts from the "Reading Through the Bible" group in his stream. He posts a discussion, and the discussion shows up in the discussions section, but not in his stream. He's given me permission to create a temporary password to troubleshoot it, but I've been unable to figure out what is going on.

I'll include his temporary login info in the private message field below. Also, site login info is updated in my "site details."