I was trying to finish the last encounter before reset to qualify for the raid jacket, but we couldn't complete it. After filling up both confluxes with motes, the boss must be tethered to start DPS, and then again to extend the DPS phase. The first tether to start DPS was always BLUE or LIGHT, so the next one was supposed to be the opposite color. However, after we connected it once, the boss jumped up in the air and created another BLUE cross-thing to connect to, which we had already used. Which meant that we couldn't start the prolonged damage phase and he killed us with enrage. This happened multiple times in the same run. Anyone else experience anything similar, or are we just not understanding the boss correctly?