i look at a thread in the bugs list and when i finish i go to click another thread and when i click nothing happens, i click more and they still do nothing, they're not displaying anything and then i go to write a thread and suddenly the thread i wanted to look at randomly appears, so what is going on ????

It's the connection, you gotta wait for it to appear
And connection problems are not a bug

Yes, the forums sometimes shut down or your connection is having problems.