Heroic Vizier (10m if that matters) 2 weeks now has bugged/glitched after a wipe and not reset, so no more progress can be made.
First time it happened the fight just seemed to not end. The room still had the gates up at the entrance and the boss was still alive sitting there doing nothing. Managed to get someone in there to try and reset but the boss just evaded, could not be engaged or reset. Tried resetting the instance and reforming the group, it didn't help. Luckily the first time this happened there was a realm restart and when we went back the next day the boss had reset.
Second time it happened the echo stayed alive and 1 shot anyone as soon as you walked in the instance. Again we tried everything, reset the instance, dropped and reformed group. But we still got 1 shot as soon as we entered the instance, which makes no sense since no raid lockout was saved and reforming the group and resetting it should give a new instance/id ?
Anyway so we gave up and said lets try setting it to normal, and killed Vizier on normal. Switched back to heroic for bladelord and again the whole raid got one shot. So even after killing vizier on normal, setting the raid back to heroic for any other boss made the glitch return.
Its really annoying and I haven't seen it mentioned much on the forums, its happened 2 weeks in a row now and I just wonder if we have been really unlucky or what other people have experienced with it?