Comments are turned on at Genesis Theme level and post level. I even left a manual comment inside the post?
As well the other content that you’ll notice is missing is there is an ommission of what I’ve added to the “After Entry”. It appears on the item with comments and author box but not on the other.
This is the first time I’ve seen something like this. Let me try and do some testing on some local demo sites to see if I can replicate the issue and come up with a solution.
I still haven’t figured out what’s going on with your site, but I will continue investigating to see what the issue is. If anyone else figures it out before I do, please let me know!