On my blog/portfolio Incomingbytes.com I have been experiencing the same issue with themes 2010, 2011, and 2012 since WP4.2.2. was installed. NO comments show up. Any idea what the fix is?
When a comment is posted it goes to a whitescreen comments-php page (according to the address)
I NEED this style of header theme with the primary menu displayed, switching to 2015 isn’t an option for me.