There is something weird about this thread

I can only see it in the forum's main page but cant see it when I open the (Long-term Prepration) page.

So, I can see it only when it comes to the top and it can show on the main page. However, if someone post in another thread on the (Long-term Prepration) and this thread becomes second or third, there is no way for me to see it.

Is anyone else facing this strange peoblem ???