I'm not sure if this has anything to do with CommentPress or not, but something unusual is happening here.
see this post:
I don't know why i'm getting that button "older version" that let's me navigate to revisions of the post. That wasn't there before, although i'm not really sure when it started to show up.
I'm still using 3.5.7 right now.
I did fairly recently add BuddyPress to my site, and I started using the Social Login plugin. don't recall any other changes recently.
Let me know if you have any thoughts.