I had such a situation. Page Activity and Questions page not been updated. There was static questions and poslendie action presents 29.08.2013 16-00. The site has been a lot of other questions and answers and other activities. But the page and Activity and Questions page not updated content in order. On top was content with the date 29.08.2013. And I put the last action from 29.08.2013 until that time. And all was well. During this time there was a lot of content on the site, I closed them. It is a pity that the content polzovateley site left I closed them. And I do not want that to happen again, I think the problem is the kernel version 1.6.2.
I changed through the base date danyh question, answer and comment from 29.08.2013. But still it will remain.
I covered a lot of questions and answers with the date 29.08.2013 that on the page above. I left on product pictures to show you one.
Sorry for my bad English. I write through a translator.