When I play hunter a marking targets proc shows red arrows either side of my character.
However, post 7.1.5, the behaviour of marking targets has changed and these are now appearing at points that are incredibly confusing.
I've disabled all my addons and concluded that these are part of the Blizzard UI, but I have no idea of how to disable them. I've even tried moveanything but it doesn't appear to be able to target the frames.