Hi Krileon,
I checked again with pure Joomla 3.4 and CB only and find out that it is Joomla error.
When "Show Publish Date" is "show" the problem will happens. But when "Show Create Date" or "Show Modify Date" is "show", there is no such error. You can check with your site. I think it happen with every site.
At the moment, I have no way to choose Create Date to show.
Thank you and regards,
Hai