Sorted!
With a bit of inspiration from Desdenova, whilst at work I had a good think about it and realised what it could be. Remembering that I had a search bar, I had implemented the following code a few months ago to hide it:
[self.tableView setContentOffset:CGPointMake(0,-20) animated:NO];
In naivety I put that in viewDidAppear
rather than viewDidLoad
. Obviously, this did hide the search bar, but with it being in the wrong void command it did it every time the masterDetailView returned to the top of the stack. So, after moving the above code to viewDidLoad it now still hides it, but only the once.
I'm just spelling it out like this for other beginners, like myself, who may come across the same problem and may just save their sanity!
Thanks to you all for your ideas that helped me out.
+1 to you all!