Just recently I've noticed that after a few minutes in build mode, a yellow box appears in the centre of the screen. It is not the box that highlights which block you are looking at. It turns as you look around but does not change size when looking at different distances and as far as I can tell it has no discernable use. It just seems to get in the way. I don't know why it appears and the only way to make it go away is to exit the ship core and re-enter.
Any help?
Any help?