Recently I did a raid with some friends and came across a random fault. We started the raid at 5.30pm NZT on October 13th. This is the first time i had seen this fault as I had not seen it occur in the previous 25 Leviathan raid completions. The fault occurs only on the Calus mechanic. I ran both throne and non throne to see if this team were doing anything different to the other groups I've run with and unfortunately could not see any differences. The attached link is a clip of a few occasions where this has happened and I was wondering if anyone else had similar experiences. The actual video was downloaded from my twitch channel, clipped and uploaded to youtube. There is a lag because I streamed for 5 plus hours and it appears that the downloaded audio and video are out of sync however when I view the past broadcast of this stream the audio/video is in sync. We've treated the Calus encounter the same every time and to confirm it has worked where it doesn't wipe us. Thanks :) Kiri