Low level dupes auto selected

Why is this still happening? I just fought DDQ burrito node with my under covered 127 PX instead of my champ PX because the game is still defaulting to the lowest character

Why indeed? Makes it hard for those of us who rely on our champed 2* to finish the node when our level 15 dupes are taking their place. Frustrating to say the least. I thought I saw somewhere that this was being addressed? Or was that the default selection in PvP? At least there you can make the change if you prefer.