I don't know if this will help but I play on ps4 also so I can understand what you may be talking about.

What happens to me is I have my item/action help show up in the same spot as you and the help window moves to the left so I think it has to do with the inventory/armoury/action window being on the right also so it moves the help to the left since the spot is already being taken up cause if I select something on say the char window, which shows up on the left, it shows the help in the right spot.

Sorry if this isn't what you're experiencing or if it isn't what you're talking about, but hope it helps.