This is really annoying me. Has always happened on iPhone and iPad app - so say I'm scrolling down reading all the titles of threads and then all of a sudden I see the same thread title that I read 40 threads ago!! 
Somehow I'm jumped back so have to scroll for ages to get where I was only for it to happen again. I'm surprised I ever make it to the bottom of the page!
Please fix this, I hope it makes sense (it does in my head 
)