I've completed the raid with only my clan members 3 times (twice yesterday alone) on the PS4 and the trophy hasn't unlocked for any of us. Some of our members have done it 7 or 8 times together and none of them had the trophy unlock for them.
Can we please get this trophy fixed? I have a feeling it'll be more of a headache than Flawless Raider, which BTW with all the glitches going on in the raid, shouldn't even be a trophy to begin with, but I digress.
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Happens on xb1 as well normally just logging off and back on will give you the trophy/achievement. Took 5 days for my raiding party achievement to register after completing it.