Same here. Really hope they figure out a way to give credit when they fix this because I know I'm not alone when I say that I've wasted an obcene amount of energy on this challenge.
Same here, got 2* with attack% on gloves boots and chest and didn't work till I got 3*. Wasted a ridiculous amount of energy. If I had of known it was still 3* I would have never bothered with it. They need to figure out a way to reimburse us. I wasted actual money on energy for this.
In description of mission there is 2 stars (after patch) item of atk% but it is not working, mission still required 3 stars. Same for mission 6.1, 6.2, 6.3 and others.