Blizzard's October 6 beta maintenance notice lists fixes for missing quest items in restocking chests, disconnects while riding elevators or transports, and errors when joining or leaving guilds.
What players should know
These are targeted bug fixes, not a promise that every related issue is resolved. If a problem persists, record the quest or transport involved, the approximate time, and any error text before reporting it through the official channels.
Guild errors are particularly relevant to players testing community features during beta; avoid treating one successful or failed attempt as proof of a permanent system rule.