In Ancient Odyssey, Tumalenque. A dungeon where the Block is set to 0. precisely (T13 d4).
As shown in the examples below. I've used different familiars with different augments each time in these scenarios but the Brain augments simply does not work. I even tried using common, rare and epic brain augments but it looks like it is also broken. (I don't have a legendary brain augment unfortunately.)
Brain augments were working just fine before, (during or after kongiversary event where I attempted the dungeon if I remember correctly). It was only today that I found out it was broken.
I use Dwadin (Spread heal&shield when you get hit/when you hit/per turn) so it might look like Mewbbo is doing the healing and shields in the 2nd example.
Hero Tag: Hyunn#AR334XG
Game Verion: 2.4.902b279