I was playing Accursed Experiments today and beat the treasure node. I got some gold and a silver move as the reward; no keys (not the 3 bronze, 2 silver, or 1 gold key prizes that are possible from the node). I then checked the rewards for 100% completion and saw that no keys were listed in that reward; only gold and 10 skill points for each character. Were keys removed as rewards from Accursed Experiments? Edit: ignore the part about the 100% completion; forgot that the 1 of each key reward comes from the boss node.