XENFORO - incorrect started by person in thread

Can someone please help. Our threads seem to be showing the wrong person who started the thread. If you look at the first post it is not the person who created the thread.

We are using xenforo 1.2. Does anyone know what the issue is. I have tried building the thread cache.
yeh that just came to mind... i just fixed the issue .

I rebuilt the thread cache last night and looks like because we have the addon 'Newest Post First' when you rebuild the cache its takes the last post as the creator. I un ticked the box in the addon to change the order back to oldest first and than rebuilt the thread cache which has fixed the issue..

Thanks guys for responding and your support. Much appreciated.