No, my game isn't modded at all, only using a custon Leader. And of course I started a new game when 0.80 did come out. The Mage/Defender/Assassin screens look all right, but the General screen I posted the picture about is messed up very much for all champions I have, not only Nen.
That trait you mentioned: I might just have overlooked it, but I haven't noticed that grey icon earlier. But I believe it wasn't there at first and only showed up recently late in the game. However that screen was messed up from the beginning. Especially those mixed up experience and spear traits in the upper row and the magic traits.
I noticed noone else posted that bug before. But my game isn't modded so first things I was thinking about what might be different for me. My OS and the nowaday exotic screen resolution did come up first for me.