I recently completed the solo flawless Zero Hour and obtained both "Zero Help" and "Zero Deaths" corresponding to the solo and solo flawless clears yet the actual flawless triumph did not drop. I remember the corresponding Whisper triumphs also being bugged but they could be obtained in a fireteam, after completing the Zero Hour exotic mission with a full fireteam and no deaths it is still unobtainable. As far as I know, I just need a flawless clear. Is there any archaic knowledge I'm missing or is it just currently bugged?