For like a week already, ToC and ToGC 25man on Lordaeron is not working. Lord Jaraxxus disappears, but the encounter stays in progress which causes the end of the raid as there is no way to start over or continue. Its reported 4 days ago in bugracker with status Duplicate for some reason...
Would be nice to fix the issue, so ppl can raid the instance without wasting hours and then raid over at Jaraxxus.
