Nostalrius Begins - Quality wow vanilla realm (1.12)

There are 2 open artifacts from ~10 days on bugtracker about The Deathstalkers rogue chain quest! How can we play normally without making class quests? They are important and should be fixed asap.

http://report.nostalrius.org/plugins/tracker/?aid=1598

I noticed that from the last few days, many quests like open chest, open bookshelf etc. with casting/channeling bar or sth like that, they stopped working.