Sextant details do not appear on Vaults of Atziri

I was rolling sextants on shaped Vaal Pyramid. When applying yellow sextants to VoA, the first two or three appeared when mousing over the VoA node on the atlas. On the final roll (abysses) mousing over VoA shows no active sextants. I can see that the sextant is active when mousing over an adjacent node.