Same issue here. DE version 3.6.31.1571. Like the rest of the achievement hunters, I tried every possible approach to no avail. Stuck at 5/7. Why don't you reveal the hidden requirements for this achievement so that we can test en mass? It's obviously broken and the endless amount of variables is not helping anybody. I am not willing to sink another 50 hours (for the third time) in Nameless Isle gameplay just to get the same result. Love the game but this is too much.
